When zinc reacts with dilute solution of strong acid, it forms salt and hydrogen gas is evolved.
Zn + 2HCl → ZnCl2 + H2
When a burning splinter is brought near the mouth of the test tube, the gas burns with a pop sound.
When zinc reacts with dilute solution of strong acid, it forms salt and hydrogen gas is evolved.
Zn + 2HCl → ZnCl2 + H2
When a burning splinter is brought near the mouth of the test tube, the gas burns with a pop sound.