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What is the action of following reagents on ethanoic acid? P2O5/heat

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Question

What is the action of following reagents on ethanoic acid?

P2O5/heat

Short/Brief Note
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Solution

Ethanoic acid on heating with strong dehydrating agent P2O5 forms acetic anhydride.

\[\begin{array}{cc}
\phantom{............}\ce{O}\phantom{........}\ce{O}\phantom{}\\
\phantom{............}||\phantom{........}||\phantom{}\\
\ce{\underset{\text{Ethanoic acid}}{2CH3COOH} ->[\ce{P2O5}/\Delta] \underset{\text{Acetic anhydride}}{CH3 _ C - O - C - CH3} + H2O}
\end{array}\]

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Chapter 12: Aldehydes, Ketones and Carboxylic acids - Short answer questions (Type-II)

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SCERT Maharashtra Chemistry [English] Standard 12 Maharashtra State Board
Chapter 12 Aldehydes, Ketones and Carboxylic acids
Short answer questions (Type-II) | Q 1.3

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