AIIMS 2019 Chemistry SN1 and SN2 mechanisms Assertion Reason Question

Option B is correct because the assertion that (CH₃)₃CBr and (CH₃)₃OH are formed when reacting with HBr is true, as tertiary alcohols can undergo protonation and subsequent nucleophilic substitution. However, while the reaction follows an SN₁ mechanism, which involves the formation of a carbocation, the reason provided does not specifically explain the formation of both products, as (CH₃)₃OH is not a direct product of the reaction with HBr.

Option A is incorrect because, although both statements are true, the reason does not adequately explain the assertion. Option C is incorrect since the assertion is indeed true. Option D is incorrect because the reason is true; it just does not correctly explain the assertion.