Salt and hydrogen gas are typically produced when metals and acids combine. Which of the following acids, excluding Mn and Mg, does not produce hydrogen gas when reacting with metals?

Hydrogen gas is not evolved when a metal reacts with nitric acid because nitric acid is a strong oxidizing agent; it oxidizes the hydrogen to produce water. Magnesium (Mg) and manganese (Mn), on the other hand, react with very dilute HNO₃ to produce H₂ gas.