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

A. `H_(2)SO_(4)`
B. HCI
C. `HNO_(3)`
D. All of the above.

Answer

C

Explanation

Hydrogen gas is not evolved when a metal reacts with nitric acid. It is because `HNO_(3)` is a strong oxidising agent. It oxidises the `H_(2)` produce to water and itself gets reduced to any of the nitrogen oxides `( N_(2)O, NO, NO_(2))`. But magnesium (Mg) and manganese (Mn) react with very dilute `HNO_(3)` to evolve `H_(2)` gas.