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Question

Question: The general formula \(( R C O ) _ { 2 } O\) represents...

The general formula (RCO)2O( R C O ) _ { 2 } O represents

A

An ester

B

A ketone

C

An ether

D

An acid anhydride

Answer

An acid anhydride

Explanation

Solution

2RCOOH→−H2O(RCO)2O Acid anhydride 2 \mathrm { RCOOH } \xrightarrow { - \mathrm { H } _ { 2 } \mathrm { O } } \underset { \text { Acid anhydride } } { ( \mathrm { RCO } ) _ { 2 } \mathrm { O } }