1.

The product formed during Hell-Volhard-Zelinsky reaction isA. `R-underset(X)underset(|)CH-COOH`B. `R-CH_(2)-COX`C. `R-underset(X)underset(|)overset(X)overset(|)C-COOH`D. `R-underset(X)underset(|)CH-CH_(2)-COOH`

Answer» Correct Answer - a
Carboxylic acids having an `alpha-`hydrogen are halogenated at the `alpha-` position on treatment with chlorine or bromine in the presence of small amount of red phosphorus to give `alpha-` halocarboxylic acids. The reaction is known as Hell-Volhard-Zellinsky reaction.


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