Chemistry-(general)
NEET Chemistry (general) MCQ Question
Type: MCQ-conceptual-Hard-Class 12
Which of the following statements about the reactivity of haloalkanes in nucleophilic substitution reactions is correct?
A
1-Bromopentane is more reactive than 2-Bromopentane in SN2 reactions.
B
2-Bromo-2-methylbutane reacts faster than 1-Bromopentane in SN2 reactions.
C
Alkyl cyanides are formed when haloalkanes react with KCN through an SN1 mechanism.
D
The reactivity of haloalkanes in SN2 reactions decreases with increasing steric hindrance.
Correct Answer
Option A
Detailed Explanation
1-Bromopentane, being a primary haloalkane, is more reactive in SN2 reactions compared to 2-Bromopentane, which is secondary and thus faces greater steric hindrance. This aligns with the trend in nucleophilic substitution reactivity discussed in the NCERT context.
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