Which Acid Will You Use To Dissolve Lead (II) Oxide?

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Question

Which acid will you use to dissolve lead (II) oxide?

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Solution

Correct option is

HNO₃

Nitric acid. This is because lead nitrate formed is soluble in water. If H₂SO₄ is used, an insoluble layer of PbSO₄ is deposited on the surface of powder and prevents the further reaction. Likewise, PbCl₂ prevents the reaction with HCl.