A red coloured mixed oxide ( X ) on treatment with conc. H N O 3 gives a compound Y . ( Y ) with HCl produces a chloride ( Z ) which is insoluble in cold water but soluble in hot water, ( Z ) can also be formed by treating ( X ) with conc.

Question

A red coloured mixed oxide ( X ) on treatment with conc. H N O 3 gives a compound Y . ( Y ) with HCl produces a chloride ( Z ) which is insoluble in cold water but soluble in hot water, ( Z ) can also be formed by treating ( X ) with conc. H C l . Compounds ( X ) , ( Y ) and ( Z ) are:

Quantrex Academy · Accepted Answer

Correct answer: A. Pb 3 O 4 , PbNO 3 , PbCl 2

P b 3 O 4 X is red coloured mixed oxideof P b O and P b O 2 . Pb 3 O 4 X +4HNO 3 → Pb NO 3 2 Y +PbO 2 +2H 2 O Pb NO 3 2 + 2HCl dil → PbCl 2 Z +2HNO 3 P b C l 2 in insoluble in cold water but soluble in hot. P b 3 O 4 ( X ) + 8 H C l → 3 P b C l 2 + 4 H 2 O + C l 2

A red coloured mixed oxide ( X ) on treatment with conc. H N O 3 gives a compound Y . ( Y ) with HCl produces a chloride ( Z ) which is insoluble in cold water but soluble in hot water, ( Z ) can also be formed by treating ( X ) with conc. H C l . Compounds ( X ) , ( Y ) and ( Z ) are:

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