1.

Give reasons for the following:(a) Sodium hydrogen sulphate is not an acid but it dissolves in water to give hydrogen ions, according to the equationNaHSO4 ⇆ H+ + Na+ + SO42-(b) Anhydrous calcium chloride is used in a desiccator.

Answer»

(a) Sodium hydrogen sulphate is not an acid but undergoes partial replacement of the ionisable hydrogen atom and behaves as an acidic salt to give H+ ions.

(b) As calcium chloride absorbs moisture and keeps the compound dry, so it is used in desiccators as a drying agent.



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