A compound (A) forms a unstable pale blue colour solution in water. The solution decolourised `Br_(2)` water and an acidified solution of `KMnO_(4)`. The possible compound (A) is `:`

Options

A. `HNO_(2)`
B. `HNO_(3)`
C. `N_(2)O_(5)`
D. `NO_(2)`

Answer

A

Explanation

`HNO_(2)` is pale ble in colour due to dissolution of `N_(2)O_(3)`. In concentrated solution it decomposes as `:` and in dilute solution is
Reaction with `: a) Br_(2)` water b) `KMnO_(4)`