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