KI in acetone, undergoes SN2 reaction with each of P, Q, R and S. The rates of the reaction vary as

Engineering

Chemistry

Preparation of Alkyl Halide

Question

KI in acetone, undergoes S_N² reaction with each of P, Q, R and S. The rates of the reaction vary as

R > P > S > Q

S > R > P > Q

P > R > Q > S

P > Q > R > S

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Rate of S_N² $α \frac{1}{steric hendrance}$

$α δ$ + charge on carbon

$α$ Stability of transition state

So, S > R > P > Q

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