Question

Y is obtaned by the decomposition of a substance X. Oxygen present in. Y reacts with a neutral oxide and evolves Z which is composed of reddish brown fumes which turns moist blue litmus red. Identify X, Y and Z.
A. `H_(2)O_(2),H_(2)" and "CO_(2)`
B. `H_(2)O_(2),O_(2)" and "NO_(2)`
C. `KCIO_(3),CI_(2)" and "O_(2)`
D. `HgO, O_(2)" and "NO`

Answer 1

Correct Answer - B
`underset((X))(H_(2))O_(2)toH_(2)O_(2)+underset((Y))(O_(2))`
`NO+underset((Y))(O_(2))tounderset(("reddish brown"))underset((Z))(NO_(2))`
`O_(2)` (Y) is neutral towards litmus whlile `NO_(2)` is acidic and hence turns moist blue to red.