NEET Chemistry Nucleophilic Addition MCQ Question
If 1 mole of an aldehyde reacts with excess hydrogen cyanide (HCN) under basic conditions, how many moles of cyanohydrin will be formed?
1 mole
2 moles
0.5 moles
3 moles
Correct Answer
Detailed Explanation
Aldehydes undergo nucleophilic addition with HCN to form cyanohydrins. One mole of aldehyde reacts with one mole of HCN to yield one mole of cyanohydrin as per the stoichiometry of the reaction.
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