[B] Formic acid
[C] Ascorbic acid
[D] Citric acid
Formic acid (methanoic acid) is the simplest carboxylic acid. It is an important intermediate in chemical synthesis and occurs naturally, most famously in the venom of bee and ant stings. The principal use of formic acid is as a preservative and antibacterial agent in livestock feed.
Submitted by :- Muhammad Nawaz