Provided that below are two statements, one is labelled as Assertion and the other is labelled as Reason .
Assertion : _____ can be subjected to Wolff-Kishner reduction to give _____
Reason : Wolff-Kishner reduction is used to convert into
In the light of the above statements, choose the correct answer from the options Provided that below:
Both and are true and is the correct explanation of
is true but is false
Both and are true but is NOT the correct explanation of
is false but is true
Correct answer:D
Standard Method
Given: An assertion-reason question on Wolff-Kishner reduction.
Find: Which option correctly describes the truth of Assertion and Reason .
The solution states that Wolff-Kishner reduction converts a carbonyl group into a methylene group . So the principle stated in Reason is true.
For the assertion, the provided solution concludes that the stated product in Assertion is not correct as written. Wolff-Kishner reduction reduces only the carbonyl group to and does not affect the chlorine substituent.
Therefore, Assertion is false but Reason is true.
The correct option is D.
Explanation from reaction principle
Given: Wolff-Kishner reduction acts on aldehydes or ketones.
Find: Whether the assertion and reason are true.
The governing transformation is
under Wolff-Kishner reduction conditions.
Thus Reason is true.
The provided solution explicitly states that the assertion is false. Its explanation is that the reaction reduces the aldehyde carbonyl group but does not alter the chlorine substituent. Hence the statement in Assertion is not accepted as correct on the solution.
So the final conclusion is: is false but is true.
Assuming Wolff-Kishner reduction removes the chlorine substituent. This is wrong because the reaction targets the carbonyl group, not the bond. Focus on reduction of to only.
Marking both Assertion and Reason as true only because the general definition of Wolff-Kishner reduction is known. This is wrong because assertion-reason questions require checking the specific product statement separately.
Using the option letter shown inside the solution heading without mapping it to the actual option text. The source heading says option , but the worked conclusion states 'A is false but R is true', which corresponds to option D in the listed choices. Always trust the final statement of the working.
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