Which are generally solids at room temperature?

Which one is chemically known as polymers?

Hydrated copper sulphate (CuSO₄. 5H₂O) is

A homogeneous solid mixture of two or more metals is

A grey powder is

A silvery white , liquid metal is

A bluish white metal is

One of the most important and widely distributed element is

Which is prepared by dissolving carbon dioxide in water under high pressure?