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  4. Assertion: SN1 reactions are generally carried out in polar protic solvents (like water, alcohol, acetic acid, etc.) Reason: C6H5CH(C6H5)Br is less reactive than C6H5CH(CH3)Br in SN1 reactions.

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Q. Assertion : $S_{N}1$ reactions are generally carried out in polar protic solvents (like water, alcohol, acetic acid, etc.)
Reason: $C_{6}H_{5}CH(C_{6}H_{5})Br$ is less reactive than $C_{6}H_{5}CH(CH_{3})Br$ in $S_{N}^{1}$ reactions.

Haloalkanes and Haloarenes

Solution:

Carbocation obtained from $C_{6}H_{5}CH(C_{6}H_{5})Br$ is more stable than $C_{6}H_{5}CH(CH_{3})Br$ as $C_{6}H_{5}CH(C_{6}H_{5})$ is stabilised by two phenyl groups and hence it is more reactive in $S_{N}1$ reaction.