Question

Match the names given in List II to their respective compounds in List I.

Answer 1

(A) Sulphuric acid is called oil of vitriol based on its appearance.

(B) On heating $H_{2}S{O}_3$, Sulphurous acid, $S{O}_2$ forms. So, $S{O}_2$ is anhydride of $H_{2}S{O}_3$

(C) $H_2{S}_2{O}_7$ (Pyrosulphuric acid) general name is Oleum.

(D) On heating $H_{2}S{O}_4,S{O}_3$ is formed. So, $S{O}_3$ is called anhydride of $H_{2}S{O}_4$

(E) Hydrogen sulphide $\left(H_{2}S\right)$ is generally called sulphated hydrogen.