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Question

(CH3COO)2Pb+Ca(OH)2A+(CH3COO)2Ca

A+CaOCl2B+CaCl2+H2O

Identify A and B.


A

PbO

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B

Pb2O

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C

Pb(OH)2

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D

PbO2

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Solution

The correct option is D

PbO2


This is one of the preparation methods of PbO2.

In the laboratory it is generally prepared by the oxidation of lead salt with bleaching powder which contains some slaked time too.

(CH3COO)2Pb + Ca(OH)2Pb(OH)2 + (CH3COO)2Ca
Pb(OH)2 + CaOCl2PbO2 + CaCl2 + H2O

Bleaching powder

Therefore, APb(OH)2

BPbO2


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