Question

Give one chemical test to distinguish between the following pair of compounds.

Calcium nitrate solution and calcium chloride solution

Answer 1

Calcium nitrate	Calcium chloride
Add silver nitrate to this solution. No reaction takes place. \[\ce{\underset{(Curdy white precipitate)}{Ca(NO3)2} + AgNO3 -> No reaction}\]	Add silver nitrate to this solution. White precipitates of silver chloride are formed. \[\ce{CaCl2 + 2AgNO3 -> 2AgCl + Ca(NO3)2}\]