Question

The solubility of a salt in water is 40 at 30°C. The amount of water required to dissolve 120 gm. at the same temperature is

(a) 400 gm.

(b) 4 litre

(c) 300 gm.

(d) 22.4 litre

Answer 1

Correct option is (c) 300 gm

40 g of salt dissolves in 100 g of water.

So, 120 g will dissolve in 300 g of water.