A) + / effect stabilises a carbanion
B) + / effect stabilises a carbocation
C) -/ effect stabilises a carbanion
D) - / effect stabilises a carbocation
Correct Answer: B
Solution :
Positive inductive effect (+ / effect) is arises due to electron releasing group (y). It develops negative charge on chain and exerts a positive inductive effect. \[\overset{\delta \,-}{\mathop{C}}\,\overset{\delta \,+}{\mathop{y}}\,\] Therefore, + / effect tends to decrease positive charge and tends to increase stability.
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