Question

HNO₃ cannot be used in place of concentrated H₂SO₄ because HNO₃ acid ______.

Options

• volatilises and may volatilise out along with HCl

• is very costly and not easily available

• does not react with sodium chloride

• It is very harmful

Answer 1

HNO₃ cannot be used in place of concentrated H₂SO₄ because HNO₃ acid volatilises and may volatilise out along with HCl.

Explanation:

Nitric acid (HNO₃) is a volatile acid. If heated, it vaporizes alongside (HCl) gas, contaminating the product. Concentrated (H₂SO₄) is preferred because it is non-volatile.