S P Singh Solutions for Chapter: Acids, Bases and Salts, Exercise 4: EXERCISE-3C

By what means, other than heating, could you dehydrate copper sulphate-$5$-water and obtain anhydrous copper sulphate?

Which one of the salts in the given list is deliquescent? Sodium chloride, anhydrous calcium chloride, copper sulphate-$5$-water.

State your observation when washing soda crystals is exposed to air.

State your observation when Iron ($\mathrm{III}$) chloride salts are exposed to the atmosphere.

Give reasons for the following, Sodium hydrogen sulphate is not an acid, but it dissolves in water to give hydrogen ions according to the equation,

${\mathrm{NaHSO}}_4\rightleftharpoons {\mathrm{H}}^{+}+{\mathrm{Na}}^{+}+{{\mathrm{SO}}_4}^{2-}$.

Give reasons for the following, anhydrous calcium chloride is used in a desiccator.

Explain clearly how conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ is used as a dehydrating as well as a drying agent.

Distinguish between drying and dehydrating agent.