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General Mechanism of Electrophilic Aromatic Substitution

Identify A an...

Question

Identify A and B in the following reaction.

A

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B

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C

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D

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Solution

The correct option is D
Reaction of phenol in presence of chromyl chloride will oxidise it to 1,4-Benzoquinone

Reaction of phenol with potassium persulfate is a called as Elbs persulfate reaction in presence of an alkali to form para diphenols

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