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Chemistry
Which of the folloiwng reagents is/are used for the conversion of ethanoic acid to ethanoic anhydride?
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Q. Which of the folloiwng reagents is/are used for the conversion of ethanoic acid to ethanoic anhydride?
Aldehydes Ketones and Carboxylic Acids
A
$SOCl _{2}, \Delta$
0%
B
$PCl _{3}, \Delta$
8%
C
$P _{2} O _{5}, \Delta$
58%
D
All of these
33%
Solution:
Carboxylic acids on heating with mineral acids such as $H _{2} SO _{4}$ or with $P _{2} O _{5}$ give corresponding anhydride.