Match the following columns

Answer

A-q,s ;B-p ; C-s ;D-r,s

Explanation

A) `4H_3 PO_3 overset(Delta) to PH_3 + 3H_2 PO_4`
(Phosphorus is in +5 oxidation state, it is a tribasic non reducing acid).
B) ` XeF_6 + 6H_2 O to Xe O_3` (explosive solid) +6HF
C ) ` NO_2 +H_2 O to 2 HNO_3 + NO ` (nitrogen is in +5 oxidation state in `HNO_3`)
D ) ` 2HNO_3 +P_4 O_(10) to 6 N_2O_2 + 5H_2 PO_4 ` (Phosphorus is in +5 oxidation state)