Which of the following will give acetic anhydride?

Acetyl chloride is heated with sodium acetate in presence of pyridine.

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Acetyl chloride is heated with sodium acetate in presence of HCl.

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Acetyl chloride is heated with ethyl acetate in presence of pyridine.

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Acetyl chloride is heated with ethyl acetate in presence of HCl.

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Solution

The correct option is A Acetyl chloride is heated with sodium acetate in presence of pyridine.
Acetyl chloride is heated with sodium acetate in presence of pyridine to obtain acetic anhydride.
$C H_{3} C O C l + N a O O C C H_{3} p y r i d i n e h e a t - ------- \to C H_{3} C O \cdot O \cdot C O C H_{3} + N a C l$

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