Which of the following carboxylic acids is mo | vedclass

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Question

(C) The reactivity of carboxylic acids towards esterification is inversely proportional to the steric hindrance around the carbonyl carbon atom.$CH_3C

Vedclass · Accepted Answer

$CH_3CH_2COOH$

Vedclass · Answer

(C) The reactivity of carboxylic acids towards esterification is inversely proportional to the steric hindrance around the carbonyl carbon atom.$CH_3CH_2COOH$ (propanoic acid) has the least steric hindrance among the given options because it is a primary carboxylic acid with the smallest alkyl group attached to the carbonyl carbon.As the number of alkyl groups or the size of the alkyl groups attached to the $\alpha$-carbon increases,the steric hindrance increases,which decreases the rate of nucleophilic attack by the alcohol.Therefore,$CH_3CH_2COOH$ is the most reactive.

Compound	Reaction with $Na$ metal	Reaction with $NaOH$	Reaction with $NaHCO_3$
Alcohol	$H_2$ is liberated	No reaction	No reaction
Phenol	$H_2$ is liberated	Soluble salt formed	No reaction
Carboxylic acid	$H_2$ is liberated	Soluble salt formed	$CO_2$ gas is liberated

Which of the following carboxylic acids is most reactive towards esterification?

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