Question

The natural sources of oxalic acid, lactic acid and methanoic acid respectively are ______.

Options

• tomato, curd, ant-sting

• tomato, orange, nettle-sting

• orange, milk, ant-sting

• orange, sour milk, nettle-sting

Answer 1

The natural sources of oxalic acid, lactic acid and methanoic acid respectively are tomato, curd, ant-sting.

Explanation:

Oxalic acid is primarily found in tomatoes and spinach. Lactic acid is found in curd or sour milk due to bacterial fermentation of lactose. Methanoic acid (Formic acid) is present in the stings of ants and nettle leaves, causing a painful burning sensation.