NEET Chemistry Organic Preparations MCQ Question
What gas is evolved when manganese dioxide is added to a mixture containing concentrated sulphuric acid and a salt?
Chlorine gas
Oxygen gas
Hydrogen gas
Nitrogen gas
Correct Answer
Detailed Explanation
The reaction of manganese dioxide with concentrated sulphuric acid and a salt produces greenish yellow chlorine gas, which is noted for its pungent odor and bleaching action.
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