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Q.

Pb3O4 + X  HCl  Y PbCl2 + Z Cl2 + n H2O. Identify the correct statement  about the given reaction.

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a

Reaction involves only acid base reaction

b

Reaction involves only Redox reaction

c

2 moles of HCl is reduced per mole of PbO2

d

2 moles of HCl is oxidised per mole of PbO2

answer is D.

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Detailed Solution

Acid - base  reaction ----2PbO + 4 HCl 2 PbCl2 +   H2O

Redox reaction ------------ PbO2 + 4 HCl PbCl2 +Cl2 + 2 H2O

Overall reaction ---- Pb3O4 + 8HCl  3 PbCl2 +Cl2 + 4 H2O

in redox reaction 2 moles of HCl is oxidised by 1 mole of PbO2

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