Which among the following halide/s will not show S_N1 reaction ? (A) H2C = CH – CH2Cl (B) CH3 – CH = CH – Cl (C) C6H5 – CH2 – Cl (D) (CH3)2CH – Cl Choose the most appropriate answer form the options given below: (1) (B) and (C) only (2) (B) only (3) (A) and (B) only (4) (A), (B) and (D) on

Question

Which among the following halide/s will not show S_N1 reaction ? (A) H2C = CH – CH2Cl (B) CH3 – CH = CH – Cl (C) C6H5 – CH2 – Cl (D) (CH3)2CH – Cl Choose the most appropriate answer form the options given below: (1) (B) and (C) only (2) (B) only (3) (A) and (B) only (4) (A), (B) and (D) only

Accepted Answer

(B) only. Option (B) is correct because the presence of a double bond adjacent to the leaving group in CH3 – CH = CH – Cl destabilizes the carbocation that would form in an S_N1 reaction, making it less likely to occur.

Solution

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