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When carbon tetrachloride is treated wit...

When carbon tetrachloride is treated with excess of Benzene in presence of `AlCl_3`, the product formed is.

A

Only`(C_6H_5)_3 C Cl`

B

Only `(C_6H_5)_4` C

C

A mixture of a and b

D

None of the two

Text Solution

Verified by Experts

The correct Answer is:
A
Fourth chlorine atom of the `C Cl_4` cannot be replaced by phenyl group because the carbocation required for the introduction of the fourth phenyl group is too stable to react with benzene .
`(C_6H_3)_3 C Cl overset(AlCl_3)to underset("Highly stable")((C_6H_5)_3 C^(oplus) AlCl_4^(Ɵ))`
Due to steric factor 4th nucleo philic cannot attack at carbon atom.
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