Question

Generally metals react with acids to give salt and hydrogen gas. Which of the following acids does not give hydrogen gas on reacting with metals (except Mn and Mg)?

Options

• H₂SO₄

• HCl

• HNO₃

• All of these

Answer 1

HNO₃

Explanation -

Out of the given options, only nitric acid when reacting with metals does not give hydrogen gas instead nitric acid is a very strong oxidising agent and it oxidises the hydrogen gas formed to water and thus hydrogen gas is not evolved.