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  4. The alkaline hydrolysis of ester is known as

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Q. The alkaline hydrolysis of ester is known as

MHT CETMHT CET 2012

Solution:

The alkaline hydrolysis of ester is known as saponification. When ester is heated with aqueous $NaOH$, sodium salt of acid and alcohol are formed.

$ \underset{\text{ester}}{R - \overset {\overset{O}{||}}{C} - O} - R' + NaOH \ce{->[H_2 O]}$

$ R - \overset{\overset{O}{||}}{C} \underset{\text{sodium carboxylate }}{- O^- }- Na^+ + \underset{\text{alcohol}}{R ' OH} $