Select the correct statement.

Options

A. Ostwald's method of preparation of `HNO_(3)` is based upon catalytic oxidation of `NH_(3)` by atmospheric oxygen.
B. `HNO_(2)` acts as both oxidising and reducing agents.
C. `NO_(2)` reacts with `O_(3)` to form `N_(2)O_(5)`
D. All of these

Answer

D

Explanation

`(A) 4NH_(3)+5O_(2)overset(PT//Rh)underset(5atm,850^(circ)C)to4NO(g),`"principal reaction of Ostwald's method of `HNO_(3)` manufacturing".
(B)`HNO_(2)`" is weak oxidising agen and oxidies "`Fe^(2+)` "to" `Fe^(3+)`and `I^(-)` "to " `I_(2)` " and it self reduced to "`N_(2)O` or NO. "In country" `HNO_(2)` "is oxidised by" `KMnO_(4)and Cl_(2)`" forming " `NO_(3)^(-)`.
`(C)2NO_(2)+O_(3)toN_(2)O_(5)+O_(2)`