Question

Match the List 1 (Chemical formula) with List 2 (common name).

Answer 1

(A) Sulphuric acid is called oil of vitrol 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.