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A red coloured mixed oxide (X) on treatm...

A red coloured mixed oxide (X) on treatment with conc. `HNO_(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. HCl. Compounds (X), (Y) and (Z) are :

A

`Pb_(3)O_(4), PbNO_(3), PbCl_(2)`

B

`Mn_(3)O_(4), MnO_(2), MnCl_(2)`

C

`Fe_(3)O_(4), Fe_(2)O_(3),FeCl_(3)`

D

`Fe_(2)O_(4), FeO, FeCl_(2)`

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A
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