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(C) The smell of vinegar is a characteristic property of acetic acid $(	ext{CH}_3	ext{COOH})$. When dilute $	ext{H}_2	ext{SO}_4$ is added to a sal

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Acetate, $	ext{CH}_3	ext{COO}^-$

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(C) The smell of vinegar is a characteristic property of acetic acid $(	ext{CH}_3	ext{COOH})$. When dilute $	ext{H}_2	ext{SO}_4$ is added to a salt containing the acetate anion $(	ext{CH}_3	ext{COO}^-)$, the following reaction occurs: $2	ext{CH}_3	ext{COO}^- + 	ext{H}_2	ext{SO}_4 ightarrow 2	ext{CH}_3	ext{COOH} + 	ext{SO}_4^{2-}$. Acetic acid is liberated as colourless vapours, which are acidic in nature and turn blue litmus paper red.

In a test tube containing a salt, a few drops of dilute $\text{H}_2\text{SO}_4$ were added, which gave colourless vapours having the smell of vinegar. The vapours turned the blue litmus paper red. Identify the correct anion from the following:

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