Statement-I: lndol and pyrol both give AE preferably at 2nd position.
Statement-2: Pyrol reacts at 2nd but indol al 3rd position.

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Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

Statement- 1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1.

Statement-1 is True, Statement- 2 is False.

Statement-1 is False, Statement- 2 is True.

answer is D.

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Detailed Solution

To accommodate the positive charge when an electrophile attacks in the second position, more resonating intermediate structures are conceivable for pyrrol. Comparable monocyclic heterocycles are significantly more reactive than indole. Since the cation created by an electrophile's attack on the C-3 site is more stable than the cation formed by the attack on the C-2 site, this site is favoured for electrophilic substitution.

Hence, Pyrol reacts at 2nd but indol at 3rd position.

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