Split (2)

train · 86.8k rows

id stringlengths 24 24	question stringlengths 1 270	answer stringlengths 1 239	documents listlengths 1 1
5729693f3f37b3190047834e	What are green paints and dyes usually made of?	minerals	[ "Green\n\nMany minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention th...
5729693f3f37b3190047834f	What is the main chemical that causes emeralds to be green?	chromium	[ "Green\n\nMany minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention th...
5729693f3f37b31900478350	What is the source of the green color in malachite pigments?	Copper	[ "Green\n\nMany minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention th...
5729693f3f37b31900478351	What is the source of amazonite's color?	small quantities of lead and water in the feldspar	[ "Green\n\nMany minerals provide pigments which have been used in green paints and dyes over the centuries. Pigments, in this case, are minerals which reflect the color green, rather that emitting it through luminescent or phosphorescent qualities. The large number of green pigments makes it impossible to mention th...
57296ac9af94a219006aa3d5	What is made by placing a plate of blade of copper, brass, or bronze into vat of fermenting wine for several weeks, then scraping off and drying the green powder?	Verdigris	[ "Green\n\nVerdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. ...
57296ac9af94a219006aa3d6	Who described the process of making verdigris in ancient times?	Pliny	[ "Green\n\nVerdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. ...
57296ac9af94a219006aa3d7	In what city did the Romans use verdigris in murals?	Pompeii	[ "Green\n\nVerdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. ...
57296ac9af94a219006aa3d8	What would verdigris do to other colors that it came in contact with?	ruin	[ "Green\n\nVerdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. ...
57296ac9af94a219006aa3d9	Which famous artist warned other artists not to use verdigris?	Leonardo da Vinci	[ "Green\n\nVerdigris is made by placing a plate or blade of copper, brass or bronze, slightly warmed, into a vat of fermenting wine, leaving it there for several weeks, and then scraping off and drying the green powder that forms on the metal. The process of making verdigris was described in ancient times by Pliny. ...
57296b763f37b31900478379	Which green food coloring is known to cause hyperactivity, asthma, urticaria, and insomnia?	Green S (E142)	[ "Green\n\nThere is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a common...
57296b763f37b3190047837a	What is a commonly used food coloring in the United Kingdom that is banned in Australia, Japan, Norway, and the United States?	Quinoline Yellow	[ "Green\n\nThere is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a common...
57296b763f37b3190047837b	What is the most common green chemical found in nature?	Chlorophyll	[ "Green\n\nThere is no natural source for green food colorings which has been approved by the US Food and Drug Administration. Chlorophyll, the E numbers E140 and E141, is the most common green chemical found in nature, and only allowed in certain medicines and cosmetic materials. Quinoline Yellow (E104) is a common...
57296bd76aef051400154e4c	How do fireworks create green sparks?	barium salts	[ "Green\n\nTo create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as \"campfire blue\") can also produce green flames. Green pyrotechnic flares can ...
57296bd76aef051400154e4d	Which copper salt can produce green glames?	cupric chloride	[ "Green\n\nTo create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as \"campfire blue\") can also produce green flames. Green pyrotechnic flares can ...
57296bd76aef051400154e4e	What is the ratio of boron to potassium nitrate in green pyrotechnic flares?	75:25	[ "Green\n\nTo create green sparks, fireworks use barium salts, such as barium chlorate, barium nitrate crystals, or barium chloride, also used for green fireplace logs. Copper salts typically burn blue, but cupric chloride (also known as \"campfire blue\") can also produce green flames. Green pyrotechnic flares can ...
57296cd06aef051400154e64	Why are many plants green?	chlorophyll	[ "Green\n\nGreen is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the hum...
57296cd06aef051400154e65	What does chlorophyll do with long (red) and short (blue) wavelengths of light?	absorbs	[ "Green\n\nGreen is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the hum...
57296cd06aef051400154e66	Where did chlorophyll first arise?	organisms living in oceans	[ "Green\n\nGreen is common in nature, as many plants are green because of a complex chemical known as chlorophyll, which is involved in photosynthesis. Chlorophyll absorbs the long wavelengths of light (red) and short wavelengths of light (blue) much more efficiently than the wavelengths that appear green to the hum...
57296da23f37b31900478391	How do animals typically use the color green?	camouflage	[ "Green\n\nAnimals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue lig...
57296da23f37b31900478392	Why do most fish, reptiles, amphibians, and birds appear green?	reflection of blue light coming through an over-layer of yellow pigment	[ "Green\n\nAnimals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue lig...
57296da23f37b31900478393	What is a chemical that can cause green hue in birds?	Turacoverdin	[ "Green\n\nAnimals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue lig...
57296da23f37b31900478394	What is a protein that carries copper ions in chelation?	ceruloplasmin	[ "Green\n\nAnimals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue lig...
57296da23f37b31900478395	What is the green pigment in bile called?	biliverdin	[ "Green\n\nAnimals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue lig...
572a16ccaf94a219006aa7d9	What is the appearance of green in th eyes attributed to?	an optical illusion	[ "Green\n\nThere is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of...
572a16ccaf94a219006aa7da	Where are green eyes most common?	Northern and Central Europe	[ "Green\n\nThere is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of...
572a16ccaf94a219006aa7db	Among Icelandic and Dutch adults, which sex more commonly has green eyes?	women	[ "Green\n\nThere is no green pigment in green eyes; like the color of blue eyes, it is an optical illusion; its appearance is caused by the combination of an amber or light brown pigmentation of the stroma, given by a low or moderate concentration of melanin, with the blue tone imparted by the Rayleigh scattering of...
572a17786aef051400155260	Which color was the symbol to regeneration and rebirth in Ancient Egypt?	green	[ "Green\n\nIn Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely-ground malachite, mined in the west Sinai and the eastern desert- A paintbox with malachite p...
572a17786aef051400155261	What did Egyptian artists grind to use to paint on the walls of tombs or on papyrus?	malachite	[ "Green\n\nIn Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely-ground malachite, mined in the west Sinai and the eastern desert- A paintbox with malachite p...
572a17786aef051400155262	How did Egyptians dye fabrics yellow?	saffron	[ "Green\n\nIn Ancient Egypt green was the symbol of regeneration and rebirth, and of the crops made possible by the annual flooding of the Nile. For painting on the walls of tombs or on papyrus, Egyptian artists used finely-ground malachite, mined in the west Sinai and the eastern desert- A paintbox with malachite p...
572a18b96aef051400155266	What is the ancient Egyptian hieroglyph for green?	a growing papyrus sprout	[ "Green\n\nFor the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, becau...
572a18b96aef051400155267	Who was the ruler of the underworld in ancient Egypt?	Osiris	[ "Green\n\nFor the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, becau...
572a18b96aef051400155268	Why was green facial makeup worn by ancient Egyptians?	to protect them from evil	[ "Green\n\nFor the ancient Egyptians, green had very positive associations. The hieroglyph for green represented a growing papyrus sprout, showing the close connection between green, vegetation, vigor and growth. In wall paintings, the ruler of the underworld, Osiris, was typically portrayed with a green face, becau...
572a19b61d0469140077977b	Which ancient greek philosopher considered green to be located midway between black and white?	Aristotle	[ "Green\n\nIn Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens; cloron, or pale green, and prasinon, or leek green. Aristotle considered that green was ...
572a19b61d0469140077977c	Which ancient greek philosopher describe pale green as cloron and leek green as prasinon?	Democritus	[ "Green\n\nIn Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens; cloron, or pale green, and prasinon, or leek green. Aristotle considered that green was ...
572a19b61d0469140077977d	Red, yellow, and black are three of the four classis colors of Greek painting. What is the fourth color?	white	[ "Green\n\nIn Ancient Greece, green and blue were sometimes considered the same color, and the same word sometimes described the color of the sea and the color of trees. The philosopher Democritus described two different greens; cloron, or pale green, and prasinon, or leek green. Aristotle considered that green was ...
572a1bcf3f37b319004786db	What color did the Romans attribute to Venus, the goddess of gardens, vegetables, and vineyards?	green	[ "Green\n\nThe Romans had a greater appreciation for the color green; it was the color of Venus, the goddess of gardens, vegetables and vineyards.The Romans made a fine green earth pigment, which was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also...
572a1bcf3f37b319004786dc	What pigment was made by soaking copper plates in fermenting wine?	verdigris	[ "Green\n\nThe Romans had a greater appreciation for the color green; it was the color of Venus, the goddess of gardens, vegetables and vineyards.The Romans made a fine green earth pigment, which was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also...
572a1bcf3f37b319004786dd	How many different words for the varieties of green exist in Latin?	ten	[ "Green\n\nThe Romans had a greater appreciation for the color green; it was the color of Venus, the goddess of gardens, vegetables and vineyards.The Romans made a fine green earth pigment, which was widely used in the wall paintings of Pompeii, Herculaneum, Lyon, Vaison-la-Romaine, and other Roman cities. They also...
572a1ccd6aef0514001552a4	Why were vegetal green dyes less than ideal?	they rapidly faded or changed color	[ "Green\n\nUnfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxin...
572a1ccd6aef0514001552a5	When was a good green vegetal dye finally produced?	16th century	[ "Green\n\nUnfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxin...
572a1ccd6aef0514001552a6	What was known as yellow-weed?	reseda luteola	[ "Green\n\nUnfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxin...
572a1d5e6aef0514001552aa	When was green associated with the romantic movement in literature and art?	18th and 19th century	[ "Green\n\nIn the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Paint...
572a1d5e6aef0514001552ab	Who was a French philospher that celebrated the virtues of nature?	Jean-Jacques Rousseau	[ "Green\n\nIn the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Paint...
572a1d5e6aef0514001552ac	Which German poet and philospher declared green to be the most restful color?	Goethe	[ "Green\n\nIn the 18th and 19th century, green was associated with the romantic movement in literature and art. The French philosopher Jean-Jacques Rousseau celebrated the virtues of nature, The German poet and philosopher Goethe declared that green was the most restful color, suitable for decorating bedrooms. Paint...
572a1dd76aef0514001552b0	When did the systematic study of color theory begin?	late nineteenth century	[ "Green\n\nThe late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his...
572a1dd76aef0514001552b1	Who painted The Night Cafe?	Vincent van Gogh	[ "Green\n\nThe late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his...
572a1dd76aef0514001552b2	What type of colors are red and green?	complementary	[ "Green\n\nThe late nineteenth century also brought the systematic study of color theory, and particularly the study of how complementary colors such as red and green reinforced each other when they were placed next to each other. These studies were avidly followed by artists such as Vincent van Gogh. Describing his...
572a1ee7af94a219006aa807	When were green and red standardized as the colors of international railroad signs?	19th century	[ "Green\n\nGreen can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the fo...
572a1ee7af94a219006aa808	When was the first traffic light erected?	1868	[ "Green\n\nGreen can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the fo...
572a1ee7af94a219006aa809	Where were the first modern electric traffic lights erected in 1912?	Salt Lake City, Utah	[ "Green\n\nGreen can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the fo...
572a1ee7af94a219006aa80a	Besides its association with danger, why was red chosen for traffic lights?	high visibility	[ "Green\n\nGreen can communicate safety to proceed, as in traffic lights. Green and red were standardized as the colors of international railroad signals in the 19th century. The first traffic light, using green and red gas lamps, was erected in 1868 in front of the Houses of Parliament in London. It exploded the fo...
572a1f9d1d046914007797af	What was absinthe known as?	the green fairy	[ "Green\n\nLike other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity and poison. There was a solid foundation for this association; in the nineteenth century...
572a1f9d1d046914007797b0	Why were popular paints and pigments in the nineteenth century highly toxic?	copper or arsenic	[ "Green\n\nLike other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity and poison. There was a solid foundation for this association; in the nineteenth century...
572a1f9d1d046914007797b1	What color is most associated with toxicity and poison?	green	[ "Green\n\nLike other common colors, green has several completely opposite associations. While it is the color most associated by Europeans and Americans with good health, it is also the color most often associated with toxicity and poison. There was a solid foundation for this association; in the nineteenth century...
572a203e3f37b31900478707	Which country had a flag in 1977 that was only green?	Libya	[ "Green\n\nMany flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national...
572a203e3f37b31900478708	What does the green in Jamaica's flag represent?	country's lush vegetation	[ "Green\n\nMany flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national...
572a203e3f37b31900478709	What does the green cedar of Lebanon tree represent on the Flag of Lebanon?	steadiness and tolerance	[ "Green\n\nMany flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national...
572a203e3f37b3190047870a	Which color is considered sacred in Islam?	green	[ "Green\n\nMany flags of the Islamic world are green, as the color is considered sacred in Islam (see below). The flag of Hamas, as well as the flag of Iran, is green, symbolizing their Islamist ideology. The 1977 flag of Libya consisted of a simple green field with no other characteristics. It was the only national...
572a2278af94a219006aa837	What is the largest green party in Europe?	Alliance '90/The Greens	[ "Green\n\nIn the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, w...
572a2278af94a219006aa838	Why was green chosen for a number of new European political parties in the 1980s?	environmentalism	[ "Green\n\nIn the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, w...
572a2278af94a219006aa839	When was the German green party founded in West Germany?	1980	[ "Green\n\nIn the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, w...
572a23651d046914007797d1	What color vestments do Roman Catholic and traditional Protestant clergy wear at liturgical celebrations during Ordinary time?	green	[ "Green\n\nRoman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worsh...
572a23651d046914007797d2	What is green the color of in the Eastern Catholic Church?	Pentecost	[ "Green\n\nRoman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worsh...
572a23651d046914007797d3	What was worshipped for their ability to maintain their color through the winter season?	evergreens	[ "Green\n\nRoman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worsh...
572a23651d046914007797d4	What did Romans use as decorations for their winter solstice celebration called Saturnalia?	green holly and evergreen	[ "Green\n\nRoman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worsh...
572a23651d046914007797d5	What does green represent in Ireland and Scotland?	Catholics	[ "Green\n\nRoman Catholic and more traditional Protestant clergy wear green vestments at liturgical celebrations during Ordinary Time. In the Eastern Catholic Church, green is the color of Pentecost. Green is one of the Christmas colors as well, possibly dating back to pre-Christian times, when evergreens were worsh...
57296e7e6aef051400154e84	What is the symbol for Zinc?	Zn	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
57296e7e6aef051400154e85	What is the atomic number for Zinc?	30	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
57296e7e6aef051400154e86	What is zinc chemically close to?	magnesium	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
57296e7e6aef051400154e87	What is the oxidation state for zinc?	+2	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
57296e7e6aef051400154e88	How many stable isotopes does zinc have?	five	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
572b4999be1ee31400cb8301	What is the symbol for zinc?	Zn	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
572b4999be1ee31400cb8302	What is zinc's atomic number?	30	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
572b4999be1ee31400cb8303	What other element on the periodic table is zinc similar to?	magnesium	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
572b4999be1ee31400cb8304	What is the most common zinc ore?	sphalerite	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
572b4999be1ee31400cb8305	What is used to extract zinc during the production process?	electricity	[ "Zinc\n\nZinc is a chemical element with symbol Zn and atomic number 30. It is the first element of group 12 of the periodic table. In some respects zinc is chemically similar to magnesium: its ion is of similar size and its only common oxidation state is +2. Zinc is the 24th most abundant element in Earth's crust ...
57296ef16aef051400154e98	What two metals are mixed to create Brass?	copper and zinc	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
57296ef16aef051400154e99	When was brass first used?	10th	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
57296ef16aef051400154e9a	Where was zinc first produced on a large scale?	India	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
57296ef16aef051400154e9b	When was zinc introduced to Europe?	end of the 16th century	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
57296ef16aef051400154e9c	Where is the oldest evidence of pure zinc?	Zawar	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
572b4ab5111d821400f38e24	Brass is an alloy of what two elements?	copper and zinc	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
572b4ab5111d821400f38e25	The earliest uses of brass has been attributed to what ancient location?	Judea	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
572b4ab5111d821400f38e26	We have evidence of zinc production dating back to the 6th century thanks to what mine?	Rajasthan	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
572b4ab5111d821400f38e27	What early process was used to make zinc?	distillation process	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
572b4ab5111d821400f38e28	What were the names given to zinc by early alchemists?	"philosopher's wool" or "white snow"	[ "Zinc\n\nBrass, which is an alloy of copper and zinc, has been used since at least the 10th century BC in Judea and by the 7th century BC in Ancient Greece. Zinc metal was not produced on a large scale until the 12th century in India and was unknown to Europe until the end of the 16th century. The mines of Rajastha...
57296f966aef051400154ea2	Who named the element zinc?	Paracelsus	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
57296f966aef051400154ea3	What was zinc named after?	Zinke	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
57296f966aef051400154ea4	Who is credited with discovering zinc?	Andreas Sigismund Marggraf	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
57296f966aef051400154ea5	What two people discovered the electrochemical properties of zinc?	Luigi Galvani and Alessandro Volta	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
57296f966aef051400154ea6	Where can you find zinc chloride?	deodorants	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
572b4ba5f75d5e190021fd6a	Who is credited as giving zinc its name?	Paracelsus	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
572b4ba5f75d5e190021fd6b	What does the name zinc or zinke mean?	(prong, tooth)	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
572b4ba5f75d5e190021fd6c	Who discovered pure metallic zinc?	Andreas Sigismund Marggraf	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
572b4ba5f75d5e190021fd6d	What is the most common use for zinc?	(hot-dip galvanizing	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
572b4ba5f75d5e190021fd6e	What is a common use for zinc chloride?	deodorants	[ "Zinc\n\nThe element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corr...
5729701b1d04691400779453	How many people are affected by zinc deficiency?	two billion	[ "Zinc\n\nZinc is an essential mineral perceived by the public today as being of \"exceptional biologic and public health importance\", especially regarding prenatal and postnatal development. Zinc deficiency affects about two billion people in the developing world and is associated with many diseases. In children i...
5729701b1d04691400779454	What can consumption of excess zinc cause?	ataxia, lethargy and copper deficiency	[ "Zinc\n\nZinc is an essential mineral perceived by the public today as being of \"exceptional biologic and public health importance\", especially regarding prenatal and postnatal development. Zinc deficiency affects about two billion people in the developing world and is associated with many diseases. In children i...
5729701b1d04691400779455	Where can you find enzymes with a zinc atom in the reactive center?	biochemistry,	[ "Zinc\n\nZinc is an essential mineral perceived by the public today as being of \"exceptional biologic and public health importance\", especially regarding prenatal and postnatal development. Zinc deficiency affects about two billion people in the developing world and is associated with many diseases. In children i...
5729701b1d04691400779456	What can a lack of zinc cause in children?	growth retardation, delayed sexual maturation, infection susceptibility, and diarrhea	[ "Zinc\n\nZinc is an essential mineral perceived by the public today as being of \"exceptional biologic and public health importance\", especially regarding prenatal and postnatal development. Zinc deficiency affects about two billion people in the developing world and is associated with many diseases. In children i...

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