Question

7. State any two tests for hydrogen.​

Answer 1

Answer:

Characteristic test for hydrogen (H2) gas can be performed by bringing a burning candle near the source of hydrogen. On doing so, hydrogen gas burns with a squeaky pop sound. Hydrogen gas is recognised by the 'pop' when it burns. The 'pop' is the sound of a small explosion.

Answer 2

Answer:

A lighted wooden splint make a popping sound ina a test tube.