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Which of the following undergoes exterif...

Which of the following undergoes exterification with acetic acid at the fastest rate ?

A

`(CH_(3))_(2)CHOH`

B

`CH_(3)CH_(2)OH`

C

`CH_(3)OH`

D

`(CH_(3))_(3)COH`

Text Solution

Verified by Experts

The correct Answer is:
C
The presence of bulky or large groups near the site of reaction , whether in the alcohol or in the acid, slows down esterification (as well as its reverse hydrolysis). Thus , reactivity in esterification follows the order:
`CH_(3)OH gt 1^(@) gt 2^(@) gt 3^(@)`
`HCOOH gtCH_(3)COOH gtRCH_(2)COOHgtR_(2)CHCOOHgtR_(3)C COOH`
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