Question

Formic acid can be distinguished from acetic acid by its reaction with.

• A. $NaHC{O}_3$
• B. Tollen's reagent
• C. NaOH
• D. None of these

Answer 1

The correct option is B Tollen's reagent

Formic acid reduces ammoniacal silver nitrate solution (Tollen's reagent) to metallic Ag.
$\underset{fromicacid}{HCOOH}+A{g}_{2}O\stackrel{\Delta }{\to }\underset{silvermirror}{2Ag}+C{O}_2+H_{2}O$