Which of the following method/(s) will give acetic anhydride?
A
Anhydrous acetic acid is dehydrated in presence of P2O5
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B
Anhydrous acetic acid is dehydrated in presence of anhydrous ZnCl2
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C
Both of the above
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D
None of the above
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Solution
The correct option is C Both of the above Anhydrous acetic acid is dehydrated in presence of dehydrating agent such as P2O5 or ahydrous ZnCl2 to obtain acetic anhydride. 2CH3COOHheat−−−→P2O5(CH3CO)2O