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Question
How is lead sulphate prepared in the aboratory?
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Solution
Lead sulphate is prepared from insoluble lead oxide, by first converting lead oxide into soluble lead nitrate with dilute nitric acid and then treating the resulting solution with sulphuric acid to obtain white ppt. of Lead sulphate.
PbO + 2HNO3 ⟶ Pb(NO3)2 + H2O
Pb(NO3)2 + H2SO4 ⟶ PbSO4 + 2HNO3
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