Identify the reagents A and B used in the following reactions :

S n / H C l, C l_{2} / h v

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C l_{2} / h v, Z n

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C l_{2} / F e, F e C l_{3}

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Z n, C l_{2} / F e C l_{3}

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Solution

The correct option is D $Z n, C l_{2} / F e C l_{3}$
The reagent A is Zn and the reagent B is $C l_{2} / F e C l_{3}$
When phenol is heated with zinc dust, it is reduced to benzene.
$C_{6} H_{5} - O H Z n - \to Δ C_{6} H_{6} + Z n O$

Benzene on chlorination with $C l_{2} / F e C l_{3}$ gives chlorobenzene. This is an example of electrophilic aromatic substitution reaction.
$C_{6} H_{6} C l_{2} / F e C l_{3} - ----- \to C_{6} H_{5} - C l$

Option D is correct.

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Similar questions

C H_{3} C H_{3} \to C H_{3} C H_{2} T

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\to T_{2} O

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