1.

Upon heating HClO_(3) in the presence of catalytic amount of MnO_(2), a gas W is formed. Excess amount of W reacts with white phosphorus to give X. The reaction of X with pure HNO_(3) gives Y and Z. W and X are, respectively

Answer»

`O_(2) and P_(4)O_(6)`
`O_(2) and P_(4) O_(10)`
`O_(3) and P_(4)O_(6)`
`O_(3) and P_(4)O_(10)`

SOLUTION :`{:(2KClo_(3) overset(MnO_(2)"," Delta)rarr 2 KCl + underset((W))(3O_(2))),(P_(4)+10O_(2) overset("Oxidation")rarr underset((X))(P_(4)O_(10))):}`
`P_(4)O_(10)` acts as a dehydrating agent and removes `H_(2)O` from `HNO_(3)` to give `N_(2)O_(5)` (Y) and itself gets converted into `HPO_(3)` (Z).
Thus, X is `P_(4)O_(10)`, Y is `N_(2)O_(5)`, and Z in `HPO_(3)` and W is `O_(2)`.
`P_(4)O_(10)+4HNO_(3)rarr underset((Y))(2N_(2)O_(5))+underset((Z))(4HPO_(3))`


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