JEE Main Chemistry question

Pick out the reaction in which formic and acetic acid differ from each other:

(A)Sodium replaces hydrogen from the compound
(B)Forms esters with alcohols
(C)Reduces a solution of ammoniacal silver nitrate or Fehling's solution, or dilute KMnO₄Correct
(D)Turns red litmus blue

Answer: (C)

Solution

Formic acid, having an aldehyde-like hydrogen directly on its carboxyl carbon, reduces Tollens'/Fehling's/KMnO₄, while acetic acid does

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Question ID VK-149955