Question

how can defferantiate the dilute HCl and dilute Sulphuric acid

Answer 1

Explanation:

Lead Nitrate dissolves in dilute hydrochloric acid to give a precipitate of lead chloride. On adding more of dilute hydrochloric acid, the precipitate will dissolve in it. Lead Nitrate forms a white precipitate in dilute sulphuric acid and does not dissolve in excess of it.

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Answer 2

Answer:

On adding lead nitrate to both acids you will get a white precipitate. Now, heat the solution and the one whose precipitate will redissolve will be dil.HCl and the one with insoluble precipitate will be dil.H2SO4.

Actually on adding lead nitrate to HCl, PbCl2 precipitates out and on heating the solution it redissolves. But in case of H2SO4, PbSO4 is formed which is insoluble even on heating it.