the presence of catalytic | Chemistry | JEE - Advance 2017

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Upon heating $\mathrm{KClO}_3$ in the presence of catalytic amount of $\mathrm{MnO}_2$, a gas W is formed. Excess amount of $W$ reacts with white phosphorus to give $X$. The reaction of $X$ with pure $\mathrm{HNO}_3$ gives $Y$ and $Z$.
W and X are, respectively :

Select the correct option:

A

$\mathrm{O}_2$ and $\mathrm{P}_4 \mathrm{O}_6$

B

$\mathrm{O}_2$ and $\mathrm{P}_4 \mathrm{O}_{10}$

C

$\mathrm{O}_3$ and $\mathrm{P}_4 \mathrm{O}_6$

D

$\mathrm{O}_3$ and $\mathrm{P}_4 \mathrm{O}_{10}$

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