$C_{6} H_{5} C H_{3} C r O_{2} C l_{2} - ---- \to A O H^{⊝} - -- \to B$
In the above reaction sequence, the conversion of A to B is called as ?

Cannizaro reaction

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Aldol condenation

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Clemmensen reduction

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Etard reaction

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Solution

The correct option is A Cannizaro reaction
In the given reaction sequence, A is benzaldehyde (no alpha hydrogens). Aldehydes containing no $α$ -hydrogen undergo Cannizaro reaction in presence of a base. So, A to B conversion is a Cannizzaro reaction.

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C_{6} H_{5} C H_{3} C r O_{2} C l_{2} - ---- \to A H_{2} O - - \to B

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