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data_id
string
domain
string
qtype
string
question
string
options
list
gold_answer
string
answer_indices
list
stem-0009
chem
assertion reasoning
Assertion (A): Traces of moisture from phenol can be removed by Shencol. Reason (R): Shencol is more acidic than water.
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true.", "Both A and R are false." ]
B) Both A and R are true, but R is not the correct explanation of A.
[ "1" ]
stem-0095
phys
assertion reasoning
Assertion: All electromagnetic waves travel through vacuum with the same speed but have different wavelengths or frequencies. Reason: The wavelength of electromagnetic waves is often correlated with the characteristic size of the system that produces and radiates them. Are both statements true, and is the reason th...
[ "Both Assertion & Reason are true and the reason is the correct explanation of the assertion.", "Both Assertion & Reason are true but the reason is not the correct explanation of the assertion.", "Assertion is true statement but Reason is false.", "Both Assertion and Reason are false statements." ]
A) Both Assertion & Reason are true and the reason is the correct explanation of the assertion.
[ "0" ]
stem-0115
chem
assertion reasoning
Assertion: In all the oxides of nitrogen, \(p\pi\text{–}p\pi\) bond is present. Reason: Back \(\pi\)-bonding is also present in \(\mathrm{BF}_3\). Determine whether the assertion and the reason are true or false.
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true.", "Both A and R are false." ]
C) A is true, but R is false.
[ "2" ]
stem-0118
math
assertion reasoning
Assertion: The relation \(R\) in the set \(A=\{1,2,3,4,5\}\) defined by \[ R = \{(x,y): 5x = y\} \] has domain \(\{1,2,3,4,5\}\) and range \(\{5,10,15,20,25\}\). Reason: The domain and range of a relation \(R\) are respectively the sets of all first and second entries of the distinct ordered pairs of the relation.
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true." ]
A) Both A and R are true and R is the correct explanation of A.
[ "0" ]
stem-0128
phys
assertion reasoning
Assertion: In a p-n junction with open ends there is no motion of charge carriers. Reason: In a p-n junction with open ends the electric field is varying.
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true.", "Both A and R are false." ]
B) Both A and R are true, but R is not the correct explanation of A.
[ "1" ]
stem-0169
chem
assertion reasoning
Assertion (A): Exposure of ultraviolet rays to humans causes skin cancer, disorders, and disrupts the immune system. Reason (R): Carbon tetrachloride depletes the ozone layer. Evaluate whether both statements are true and whether R correctly explains A.
[ "Both A and R are correct; \\( \\mathrm{R} \\) is the correct explanation of A", "Both A and R are correct; R is not the correct explanation of A", "\\( \\mathrm{A} \\) is correct; \\( \\mathrm{R} \\) is incorrect", "\\( \\mathrm{R} \\) is correct; \\( \\mathrm{A} \\) is incorrect" ]
A) Both A and R are correct; \( \mathrm{R} \) is the correct explanation of A
[ "0" ]
stem-0207
chem
assertion reasoning
Consider the following statements: Statement 1: Physical absorption of molecules takes place on surface only. Statement 2: In this process, the bonds of the absorbed molecules are broken. Judge the correctness of these statements.
[ "If both statements are correct and statement-2 is correct explanation of statement-1.", "If both statements are correct but statement-2 is not correct explanation of statement-1.", "If statement-1 is correct but statement-2 is wrong.", "If both statements are wrong.", "If statement-1 is wrong but statement...
D) If both statements are wrong.
[ "3" ]
stem-0252
math
assertion reasoning
Assertion: Value of \(\sin(-270^\circ)\) is 1. Reason: \(\sin(180^\circ + \theta) = -\sin\theta\).
[ "Both A and R true and R is the correct explanation of A", "Both A and R true and R is not the correct explanation of A", "A is true and R is false", "A is false and R is true" ]
A) Both A and R true and R is the correct explanation of A
[ "0" ]
stem-0277
phys
assertion reasoning
Consider the following statements: Assertion: The force of friction for a disc rolling without slipping down an inclined plane is \( \frac{1}{3} m g \sin \alpha \). Reason: When the disc rolls without slipping, friction is required because for rolling, the velocity of the point of contact is zero. Are both the Assertio...
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true.", "Both A and R are false." ]
A) Both A and R are true and R is the correct explanation of A.
[ "0" ]
stem-0340
math
assertion reasoning
Assertion: The points A(3, -1, 2), B(1, 2, -4), C(-1, 1, 2) and D(1, -2, 8) are the vertices of a parallelogram. Reason: The coordinates of the midpoint of the line segment joining the points \((x_{1},y_{1},z_{1})\) and \((x_{2},y_{2},z_{2})\) are \(\displaystyle\bigl(\tfrac{x_{1}+x_{2}}{2},\,\tfrac{y_{1}+y_{2}}{2}...
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true.", "Both A and R are false." ]
B) Both A and R are true, but R is not the correct explanation of A.
[ "1" ]
stem-0355
phys
assertion reasoning
Assertion: Energy is released in a nuclear reaction. Reason: In any nuclear reaction, the reactants and resultant products obey the law of conservation of charge and mass only.
[ "Both A and R are true and R is the correct explanation of A.", "Both A and R are true, but R is not the correct explanation of A.", "A is true, but R is false.", "A is false, but R is true.", "Both A and R are false." ]
E) Both A and R are false.
[ "4" ]
stem-0740
math
matching list
A is a set containing \(n\) elements. A subset \(P\) (possibly empty) is selected at random from \(A\), and then the elements of \(P\) are put back so that \(A\) is restored. A subset \(Q\) (possibly empty) of \(A\) is then chosen at random. What is the probability that \(P = Q\)?
[ "\\( \\mathrm{A}-\\mathrm{p}, \\mathrm{B}-\\mathrm{q}, \\mathrm{C}-\\mathrm{s}, \\mathrm{D}-\\mathrm{s} \\)", "\\( \\mathrm{A}-\\mathrm{r}, \\mathrm{B}-\\mathrm{p}, \\mathrm{C}-\\mathrm{s}, \\mathrm{D}-\\mathrm{q} \\)", "\\( \\mathrm{A}-\\mathrm{p}, \\mathrm{B}-\\mathrm{r}, \\mathrm{C}-\\mathrm{q}, \\mathrm{D}-...
A) \( \mathrm{A}-\mathrm{p}, \mathrm{B}-\mathrm{q}, \mathrm{C}-\mathrm{s}, \mathrm{D}-\mathrm{s} \)
[ "0" ]
stem-0839
resn
multiple correct choice
A study suggests that a new study app designed for students can improve learning outcomes by 30%. The study involved a group of students who used the app regularly for a month and showed a 30% increase in test scores compared to students who did not use the app. The researchers concluded that the study app significantl...
[ "The group of students using the study app had access to supplementary tutoring sessions, which might have contributed to their improved test scores.", "The study did not consider variations in the difficulty levels of tests taken by the students, which might have influenced the observed increase in test scores."...
C) An analysis conducted by a different research team found that the improvement in test scores among students using the study app was consistent with the general performance trend of the students in that particular academic year.
[ "2" ]
stem-0897
resn
multiple correct choice
What is the free capacity of the transportation line between Hyderabad and Mumbai?
[ "0", "250", "350", "100" ]
C) 350
[ "2" ]
stem-0912
resn
multiple correct choice
Read the following passage and answer the question that follows: “Zoom had security issues with their chat box; Bugs are an extensive delinquent in various packages and applications. Hackers might allocate malware by creating GIF pictures and cryptogram snippets, this is according to a surveillance company known as Ta...
[ "Zoom had security issues with their chat box due to bugs and hackers.", "Hackers can allocate malware by creating GIF pictures and cryptogram snippets.", "The conversation window in Zoom allowed clients to convey any file types, including untitled properties, which can easily debase the device and relocate mal...
D) Zoom bombing is a major security threat faced by Zoom users where uninvited guests can crash meetings and the host loses control of the problem.
[ "3" ]
stem-0990
resn
multiple correct choice
Climate resilience is an important trait that the global plant research community focuses on for ensuring food and nutritional security. Understanding the genetic determinants underlying this complex trait is key for tweaking the candidate genes, alleles, or QTLs to enhance climate resilience. Genomics plays a major ro...
[ "Characterization of gene families provides insights into structural and functional diversity.", "Recent studies on gene families focus on dissecting the structural and functional aspects of gene families", "Genome sequencing can help identify the candidate genes for downstream characterization.", "The import...
D) The importance of genome-wide analyses is evident in delineating the functional roles of different gene families in imparting climate resilience
[ "3" ]

STEM-QA-EVAL

Composition

Subject Description
chem Chemistry — physical, organic, and inorganic chemistry questions.
math Mathematics — algebra, geometry, trigonometry, set theory, and combinatorics.
phys Physics — mechanics, electromagnetism, optics, and modern physics.
resn Reasoning — verbal, logical, and comprehension-style questions.

Schema

Column Type Description
data_id string Stable identifier (stem-NNNN, where NNNN is the original 0-based line index in the source corpus).
domain string One of chem, math, phys, resn.
qtype string Question format: assertion reasoning, multiple correct choice, matching list.
question string Problem stem (LaTeX / HTML entities possible).
options list[string] Lettered choices A, B, C, ...
gold_answer string Resolved gold answer — <LETTER>) <option text> (multi-answer joined with ;).
answer_indices list[string] Raw option index strings (e.g. ["1"] or ["0","2","3"]).

Usage

from datasets import load_dataset
ds = load_dataset("reinforcelabs/STEM-QA-EVAL")
ex = ds["test"][0]
print(ex["data_id"], ex["domain"], ex["qtype"])
print("Q:", ex["question"])
for i, opt in enumerate(ex["options"]):
    print(f"  {chr(ord('A')+i)}) {opt}")
print("GOLD:", ex["gold_answer"])
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