Question

A White Powered Solid when dropped in water produces hissing sound. Wht is the solid maybe ? Give with equation of the reaction of this solid with moist Hydrogen chloride gas. Mention 2 uses of the solid compound.

Answer 1

Answer:

caco^3  on heating it gives cao and co^2

Explanation:

so the white powder is( cao) which makes the hiss sound while putting in water

two uses :-

it is used in the manufacture of the following things

1. paint

2. plastic