Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-diagram based-Easy-Class 12
A diagram shows the mechanism of an ether molecule reacting with concentrated HI. Which step involves the nucleophile attacking the least substituted carbon of the oxonium ion?
A
Step 1: Protonation of ether
B
Step 2: Nucleophilic attack by iodide ion
C
Step 3: Formation of alcohol and alkyl iodide
D
Step 4: Conversion of alcohol to alkyl iodide
Correct Answer
Option B
Detailed Explanation
The iodide ion, being a good nucleophile, attacks the least substituted carbon of the oxonium ion in step 2, displacing an alcohol molecule in an S_N2 mechanism.
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