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During monoalkylation of Benzene with CH...

During monoalkylation of Benzene with `CH_3Cl` in presence of anhydrous `AlCl_3`, an excess of `C_6H_6` must be used because this will.

A

Increase the chance for collision between `CH_3^(+) and C_6H_6`

B

Decrease the collision betweeen `CH_3^(oplus) and C_6H_5CH_3`

C

both a and b

D

Decrease the chance for collision between `CH_3^(oplus) and C_6H_6`

Text Solution

Verified by Experts

The correct Answer is:
C
Since `CH_3` group is an activating group , the mono methylated product is more reactive than benzene itself leading to formation of `C_6H_4(CH_3)_2 and C_6H_3(CH_3)_3`. Excess of `C_6H_6` is used to increase the chance for collision between and to minimize collision between `CH_2^(oplus) and C_6H_5CH_3`.
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