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Question

Decarboxylation of cinnamic acid gives:

A
Benzene
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B
Toluene
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C
Styrene
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D
Ethylbenzene
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Solution

The correct option is C Styrene
Decarboxylation reaction is defined as a chemical reaction that eliminates a carboxyl group and liberates carbon dioxide (CO2). Decarboxylation mostly refers to a reaction of carboxylic acids erasing a carbon atom from a chain of carbons. The reagents used in the reaction are NaOH and CaO in 3:1 ratio in presence of heat.

The reaction is as follows:

Hence, the correct answer is option (d).

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