Match the following

Answer

A-ps; B-ps; C-r; D-pq

Explanation

A) Colour acidified `KMnO_(4)` is discharged - Gas evolved by the action of dilute `H_(2)SO_(4)` on a sulphite - Gas evolved by the action of dilute `H_(2)SO_(4)` on a sulphide
B) Acidified dichromate solution is turned - Gas evolved by the action of dilute `H_(2)SO_(4)` a sulphite - Gas evolved by the action of dilute `H_(2)SO_(4)` on a sulphide
C) Nessler.s reagent gives a brown precipitate - Gas evolved by heating an ammonium salt with NaOH
D) Baryta water turns milky - Gas evolved by the action of dilute `H_(2)SO_(4)` on a sulphite - Gas evolved by the action of dilute `H_(2)SO_(4)` on a carbonate