Water is a liquid and abnormally has low volatility. Explain. 

A liquid has

pH of acid rain is sometimes as low as 2. Explain.

Water has maximum density and minimum volume at 4^(@)C. Explain.

Define vapour pressure of a liquid. What happens to the vapour pressure when (a) volatile solute dissolves in the liquid and (b) the dissolved solute is non-volatile.

Why vapour pressure of a liquid decreases when a non - volatile solute is added to it ?

Out of o-nitrophenol and p-nitrophenol, which is more volatile ? Explain?

Out of o-nitrophenol and p-nitrophenol, which is more volatile ? Explain?

Trunks of some of the aged tree species appear to be composed of several fused trunks. It it a physiological or anatomical abnormality ? Explain in detail.

BaCl_2 is a low melting volatile solid.

Water is a liquid, while H_2 S is a gas at ordinary temperature. Explain.