Question

4. The role of acetic anhydride is chemical reaction is as
a. reducing agent
b. oxidising agent
c. dehydrating agent
d. hydrating agent
​

Answer 1

Answer: Dehydrating agent

Explanation:

Acid anhydrides can be defined as oxides of non-metals that form acidic solutions when reacted with water. In organic chemistry,  a functional group is composed of two acyl groups linked by an oxygen atom. Non-metals that can react with water are called acid anhydrides, and non-metals that do not react with water are not acid anhydrides. Acid anhydrides are molecules that can form acidic solutions in water. Hydrolysis of acetic anhydride in the presence of water is an exothermic reaction that produces acetic acid. Therefore, it is used as a dehydrating agent. Anhydrides are highly reactive towards nucleophiles and can acylate a variety of proteins and other macromolecules, an important functional group.

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