Arrange these carboxylic acids in decreasing | vedclass

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(A) The rate of esterification of carboxylic acids with alcohols is primarily governed by steric hindrance.As the bulkiness or size of the alkyl group

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$II > I > III > IV$

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(A) The rate of esterification of carboxylic acids with alcohols is primarily governed by steric hindrance.As the bulkiness or size of the alkyl groups attached to the carboxyl group $(-COOH)$ increases,the nucleophilic attack of the alcohol $(CH_3OH)$ on the carbonyl carbon becomes more sterically hindered,thereby decreasing the rate of reaction.Analyzing the structures:$(II)$ $CH_3-CH(CH_3)-CH_2-COOH$ has the least steric hindrance at the $\alpha$-carbon.$(I)$ $CH_3-CH(CH_3)-COOH$ has a secondary $\alpha$-carbon.$(III)$ $CH_3-C(CH_3)_2-COOH$ has a tertiary $\alpha$-carbon with methyl groups.$(IV)$ $(CH_3-CH_2)_3C-COOH$ has a tertiary $\alpha$-carbon with bulkier ethyl groups,providing the maximum steric hindrance.Therefore,the decreasing order of ease of esterification is: $II > I > III > IV$.

Arrange these carboxylic acids in decreasing order of ease of esterification with $CH_3OH/H^{+}$:
$(I)$ $CH_3-CH(CH_3)-COOH$
$(II)$ $CH_3-CH(CH_3)-CH_2-COOH$
$(III)$ $CH_3-C(CH_3)_2-COOH$
$(IV)$ $(CH_3-CH_2)_3C-COOH$

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Arrange these carboxylic acids in decreasing order of ease of esterification with $CH_3OH/H^{+}$:$(I)$ $CH_3-CH(CH_3)-COOH$$(II)$ $CH_3-CH(CH_3)-CH_2-COOH$$(III)$ $CH_3-C(CH_3)_2-COOH$$(IV)$ $(CH_3-CH_2)_3C-COOH$