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Give a chemical test to distinguish betw...

Give a chemical test to distinguish between the following pairs of chemicals:
Lead nitrate solution and Zinc nitrate solution

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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 `PbCl_2` whereas there would be no precipitate formed with zinc nitrate solution.
`Pb^(2+) + 2 Cl^(-) rarr PbCl_2(darr)`
`Pb(NO_3)_2 + 2HCl rarr PbCl_2(darr) + 2HNO_3`
`Zn(NO_3)_2 + 2HCl rarr ZnCl_2 + 2HNO_3`
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