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Fluorides of Xenon

An inorganic ...

Question

An inorganic red coloured compound (A) on heating gives a compound (B) and a gas (C). (A) on treatment with conc. $H N O_{3}$ gives compound (D), brown colour substance (E) and a neutral oxide (F). Compound (D) on warming gives off again gas (C). Then A, will be:

A

M n_{3} O_{4}

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B

P b O_{2}

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C

P b_{3} O_{4}

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D

F e_{2} O_{3}

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Solution

The correct option is C $P b O_{2}$
$2 P b O_{2} \to 2 P b O + O_{2}$
$P b O_{2}$ reacts with $H N O_{3}$ and forms brown colour substance.

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