Chemistry-SN1 & SN2 Reactions

NEET Chemistry SN1 & SN2 Reactions MCQ Question

Type: MCQ-diagram based-Medium-Class 12

A reaction mechanism diagram shows tert-butyl bromide reacting with hydroxide ions in a polar protic solvent. Which step in the SN1 reaction involves the formation of a carbocation intermediate?

Question diagram
A

Step I after C—Br bond cleavage

B

Step II involving nucleophile attack

C

Initial nucleophile approach

D

Final product formation

Correct Answer

Option A

Detailed Explanation

In SN1 reactions, the first step involves the slow cleavage of the C—Br bond, leading to the formation of a carbocation intermediate.

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