Give a chemical test to distinguish between the following pairs of che

1.	Give a chemical test to distinguish between the following pairs of chemicals:(i) Lead nitrate solution and zinc nitrate solution. (ii) Sodium chloride solution and sodium nitrate solution.
Answer» (i) Add aqueous hydrochloric acid solution to the solution of lead nitrate and solution of zinc nitrate prepared separately. The solution of lead nitrate would give a white precipitate of PbCl₂ whereas there would be no reaction with zinc nitrate solution. Pb²⁺+ 2Cl^- ---> PbCl₂(↓) (ii) Add aqueous solution of silver nitrate (AgNO₃) to the solution of sodium chloride and solution of sodium nitrate prepared separately. The solution of sodium chloride would give a white precipitate of AgCl whereas there would be no reaction with sodium nitrate solution.

Give a chemical test to distinguish between the following pairs of chemicals:(i) Lead nitrate solution and zinc nitrate solution. (ii) Sodium chloride solution and sodium nitrate solution.

Answer»

(i) Add aqueous hydrochloric acid solution to the solution of lead nitrate and solution of zinc nitrate prepared separately. The solution of lead nitrate would give a white precipitate of PbCl₂ whereas there would be no reaction with zinc nitrate solution.

Pb²⁺+ 2Cl^- ---> PbCl₂(↓)

(ii) Add aqueous solution of silver nitrate (AgNO₃) to the solution of sodium chloride and solution of sodium nitrate prepared separately. The solution of sodium chloride would give a white precipitate of AgCl whereas there would be no reaction with sodium nitrate solution.

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