Question

using a suitable reagent distinguish between zinc chloride and lead chloride​

Answer 1

Answer:

(i) Addition of excess of Ammonium hydroxide.

Lead nitrate results in insoluble white precipitate while zinc nitrate initially forms white precipitate that solublises in excess of ammonium hydroxide solution.

(ii) Silver nitrate test. Silver nitrate gives white precipitate with sodium chloride while sodium nitrate do not react.

Answer 2

Answer:

There are two reagents that can be used to distinguish between Zinc chloride and Lead chloride and they are addition of excess of Ammonium hydroxide and  Silver nitrate test.

First case,

Using addition of excess of Ammonium hydroxide,

When zinc chloride is added to ammonium hydroxide, then it forms a white precipitate and when excess of ammonium hydroxide is added to it then it is soluble in excess of ammonium hydroxide whereas lead chloride is not soluble in excess of ammonium hydroxide solution.

Second case,

Silver nitrate test,

When lead chloride is added with silver nitrate then it does not react whereas zinc chloride reacts with silver nitrate solution to give a white precipitate.

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