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Q.
Formic acid is a stronger acid than acetic acid. This can be explained using
KCETKCET 2011Aldehydes Ketones and Carboxylic Acids
Solution:
In acetic acid, methyl group release electron due to $+I$ effect which decreases its acidic character whereas, formic acid does not contain any such type of group. Hence, formic acid is stronger acid than acetic acid.