NEET Chemistry SN1 & SN2 Reactions MCQ Question
Which of the following statements about SN1 and SN2 reactions is correct?
SN1 reactions follow first-order kinetics and involve a carbocation intermediate.
SN2 reactions are faster for tertiary halides than for primary halides.
In SN1 reactions, the reactivity order is tertiary > secondary > primary.
SN2 reactions occur in two steps involving the formation of a stable carbocation.
Correct Answer
Detailed Explanation
SN1 reactions indeed follow first-order kinetics and involve a carbocation intermediate, as described in the context. The reactivity order in SN1 is tertiary > secondary > primary, whereas SN2 reactions are faster for primary halides due to steric hindrance, not tertiary. SN2 reactions occur in one concerted step, not two.
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