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JEE Main 1-Sep-2021 Shift 2 Solved Paper
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Question : 45
Total: 90
Given below are two statements.
Statement I
The nucleophilic addition of sodium hydrogen sulphite to an aldehyde or a ketone involves proton transfer to form a stable ion.
Statement II
The nucleophilic addition of hydrogen cyanide to an aldehyde or a ketone yields amine as final product.
In the light of the above statements, choose the most appropriate answer from the options given below.
[1 Sep 2021 Shift 2]
Both statement I and statement II are true
Statement I is false but statement II is true.
Statement I is true but statement II is false.
Both statement I and statement II are false.
Validate
Solution:
Nucleophilic addition of sodium hydrogen sulphite (
NaHSO
3
) tocarbonyl compound (aldehyde or ketone) involves proton transfer to form a stable ion.
Hence, statement I is true.
Nucleophilic addition of HCN (hydrogen cyanide) to an aldehyde/ketone yield cyanohydrin as final product.
Hence, statement II is false.
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