Chemistry

Problem

Column-I	Column-II
(A) Red vapours	(P) $\text{MnSO}_4 + \text{NaBiO}_3 + \text{Conc. HNO}_3$
(B) NaOH solution is turned yellow by the vapours	(Q) $\text{KCl} + \text{Solid K}_2\text{Cr}_2\text{O}_7 + \text{conc. H}_2\text{SO}_4$
(C) Purple solution	(R) KBr heated with $\text{MnO}_2$ and conc. $\text{H}_2\text{SO}_4$
(D) A colourless solution results when the evolved gas is absorbed in NaOH solution	(S) $\text{Na}_2\text{S} + \text{Na}_2[\text{Fe}(\text{CN})_5(\text{NO})]$