Question

From the solubility curve, which of these salts is most soluble at 0°C?

Answer 1

(C) NaNO3
Cant be A,B,orD not suitable

Answer 2

Answer:- C. $NaNO_3$ .

Explanations:- From solubility curve, the solubility of sodium chloride at 0 degree C is around 36 g per 100 g of water.

Solubility of potassium bromide at 0 degree C is 60 g per 100 g of water.

solubility of sodium nitrate at 0 degree C is 70 g per 100 g of water and the solubility of potassium nitrate at 0 degree C is 13 g per 100 g of water.

Since the solubility of sodium nitrate is highest, the right choice is C. $NaNO_3$ .