Chemistry-Chemical Reactions
NEET Chemistry Chemical Reactions Assertion Reason Question
Type: Assertion Reason-assertion-Hard-Class 12
Assertion (A): In the dehydration of alcohols, the formation of the carbocation is the slowest step and thus the rate-determining step. | Reason (R): The mechanism of dehydration of ethanol involves the formation of a protonated alcohol as the first step, followed by the formation of ethene.
A
Both A and R are true, and R is the correct explanation of A.
B
Both A and R are true, but R is not the correct explanation of A.
C
A is true but R is false.
D
A is false but R is true.
Correct Answer
Option B
Detailed Explanation
Both statements are true. The rate-determining step is the formation of the carbocation. However, R describes the overall mechanism and not specifically why the carbocation formation is the slowest step.
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