Update questions.json

questions.json

@@ -1,4 +1,5 @@
-{
+[
+  {
       "id": 1,
       "question": "What does a material balance primarily apply?",
       "options": ["Conservation of energy", "Conservation of mass", "Conservation of momentum", "Conservation of volume"],
@@ -238,7 +239,7 @@
       "options": ["Batch without reaction", "Continuous with reaction", "Semi-batch with accumulation", "Unsteady reactive system"],
       "answer": "Batch without reaction"
     },
- {
+  {
     "id": 1,
     "question": "What does the law of conservation of mass state in material balances?",
     "options": [