Question

A metal which gives hydrogen while reacting with acid and water

Answer 1

Metal is zinc

Zn + 2HCl -- ZnCl2 +H2

Zn +H2O -- ZnO +H2

Answer 2

Amphoteric metals like aluminium and zinc can react with water, alkali and acid under certain conditions to give hydrogen.

The reaction is below in the attachment

I hope it helps u