Question

Explain why- 

(i) Anhydrous calcium chloride is used in desiccators 

(ii) If bottle full of concentrated H₂SO₄ is left open in the atmosphere by accident, the acid starts flowing out the bottle of its own.

Answer 1

(i) Anhydrous calcium chloride CaCl₂ is highly hygroscopic in nature it readily absorbs moisture and is therefore used as drying agent. 

(ii) Concentrated sulphuric acid is highly hygroscopic it absorbs moisture from air and gets diluted. Since the volume increases, the acid starts flowing out of the bottle.