Pratyush took sulphur powder on a spatula and heated it.

[question] Question. Pratyush took sulphur powder on a spatula and heated it. He collected the gas evolved by inverting a test tube over it, as shown in figure below. (a)What will be the action of gas on (i) dry litmus paper? (ii) moist litmus paper? (b)Write a balanced chemical equation for the reaction taking place. [/question] [solution] solution: (a)(i) There will be no action on dry litmus paper. (ii)Since the gas is sulphur dioxide $\left(\mathrm{SO}_{2}\right)$, it turns moist blue litmus...