Why pellets of potassium hydroxide become wet when exposed to air

Why is a solution of potassium hydroxide used to absorb carbon dioxide evoled during the estimation of carbon present in an organic compound?

When sodium hydroxide reacts with sand, it form

Explain the following observation: Lumps of quicklime is converted into powder when exposed to air for some time.

Discuss why on exposure to air, sodium hydroxide becomes liquid and after sometime it changes to white powder.

Why does the path of light become visible when passed through a colloidal solution?

Why do plants need potassium and megnesium?

Why do plants need potassium and magnesium?

Which poisonous gas is formed when chloroform is exposed to air and light?

Which Gr-2 metal burns readily when exposed to air?

A metal gets coated with a green basic carbonate when exposed to moist air. The metal is -