. In the double displacement reaction between aqueous potassium iodide and aqueous lead

nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available,

which of the following can be used in place of lead nitrate?

A: Lead sulphate (insoluble)

B: Lead acetate

C: Ammonium nitrate

D: Potassium sulphate

Explanation :

2KI(aq) + Pb(NO₃)₂(aq)→PbI₂(s) + 2KNO₃

Lead acetate reacts with potassium iodide dissolved in water to give acetate ion and lead ion

The lead ion combines with the iodine ion and form lead iodide

Potassium ion combines with acetate ion and forms potassium acetate. .

2KI(aq)+Pb(CH₃COO)₂ (aq)→PbI₂(s) + 2CH₃COOK

Hence , lead acetate can be used in place of lead nitrate .

Final Answer : Hence the correct option is (B) Lead acetate.

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