Question

Identify the correct statements:
(1) $H_{2}S$ is a colourless, poisonous gas with a smell like that of rotten egg.
(2) $H_{2}S$ is lighter than air.
(3) $H_{2}S$ is fairly soluble in water at 0 °C and 1 atmospheric pressure.
(4) Aqueous solution of $H_{2}S$ is basic and turns red litmus blue.

Answer 1

The physical properties of ${\text{H}}_2\text{S}$ are:
1) Colourless
2) Poisonous
3) Smells like rotten egg
4) Heavier than air
5) Fairly soluble in water at 0 °C and 1 atmospheric pressure
6) Aqueous solution of $H_{2}S$ is acidic and turns blue litmus red.