Question

Why formic acid show positive test with tollens reagent?

Answer 1

Formic Acid or H-COOH has an aldehyde linked to it. And so like any other aldehyde it gives a reaction withTollens Reagent, precipitating Silver. ...Formic acid (or methanoic acid,HCOOH) is a carboxylic acid which acts as a strong reducing agent because it is readily oxidised to form carbon dioxide and water.

Answer 2

Explanation:

Here is a short simple available answer provided online by Prachi Sawant in 2016 to quote: Formic acid has both aldehydic (-CHO) and carboxylic (-COOH) functional groups. Hence, it gives both Tollen's and Fehling's test positive.