Match the reactions listed in column-I with characteristic(s) listed in column-II. List - I List - II (A) H 3 PO 3 Δ (P) Coloured gas (B) NH 4 NO 2 Δ (Q) Colourless gas (C) K 2 Cr 2 O

Question

Match the reactions listed in column-I with characteristic(s) listed in column-II.

List - I	List - II
(A) $H_{3} PO_{3} Δ$	(P) Coloured gas
(B) $NH_{4} NO_{2} Δ$	(Q) Colourless gas
(C) $K_{2} Cr_{2} O_{7} Δ$	(R) Polyatomic gas
(D) $PtCl_{4} Δ$	(S) Disproportionation reaction
	(T) Redox reaction

TestHub · Accepted Answer

Question Explanation :

Match reactions with their characteristics.

Concept:

Thermal decomposition and redox behavior.

Solution :

$4 H_{3} PO_{3} Δ 3 H_{3} PO_{4} + PH_{3}$

$NH_{4} NO_{2} \to N_{2} + 2 H_{2} O$

$4 K_{2} Cr_{2} O_{7} Δ K_{2} CrO_{4} + 2 Cr_{2} O_{3} + 3 O_{2}$

Final Answer: $A \to R, S$ $B \to Q, T$ $C \to Q, T$ $D \to P, T$

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