Arrange these carboxylic acids in decreasing | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

Vedclass · Accepted Answer

$II > I > III > IV$

Vedclass · Answer

(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 $CH_3OH/H^{+}$:
$(I)$ $CH_3-CH(CH_3)-COOH$
$(II)$ $CH_3-CH(CH_3)-CH_2-COOH$
$(III)$ $CH_3-C(CH_3)_2-COOH$
$(IV)$ $(CH_3-CH_2)_3C-COOH$

Similar Questions

The relative acidic strengths of benzoic acid,$o-$toluic acid and $p-$toluic acid are in the decreasing order:

The reaction of benzoic acid with methanol in the presence of an acid catalyst $(H^+)$ is shown below. Identify the correct product.
$C_6H_5COOH + CH_3O^{18}H \xrightarrow{H^+} \text{Product}$

Which of the following compounds has the maximum acidic strength?

Identify the correct order of boiling points of the following compounds: $CH_3CH_2CH_2CH_2OH$ $(1)$,$CH_3CH_2CH_2CHO$ $(2)$,$CH_3CH_2CH_2COOH$ $(3)$.

Which of the following compounds will not give the Iodoform test?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

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)$ $(CH_3-CH_2)_3C-COOH$