Question

How many carboxylic groups $(-\stackrel{\stackrel{O}{||}}{C}-OH)$ are present in formic acid ?

• A. Zero
• B. One
• C. Two
• D. Three

Answer 1

The correct option is B One

Formic acid is a monocarboxylic acid. It contains only one carboxylic group $(-\stackrel{\stackrel{O}{||}}{C}-OH)$.
Molecular formula of formic acid is $H-\stackrel{\stackrel{O}{||}}{C}-OH$.