NCERT Solution for Class Tenth Science Chapter 2
Acids, Bases and Salts
Exercises Questions
Page No-19
Questions No-13
Plaster of Paris should be stored in a moisture-proof container. Explain why?
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NCERT Solution for Class Tenth Science Chapter 2
Acids, Bases and Salts
Exercises Questions
Page No-19
Questions No-13
Plaster of Paris (POP) is stored in a moisture-proof container because POP absorbs water vapour from the surrounding and reacts to form a hard mass solid known as gypsum.
CaSO₄.1/2H₂O+ 3/2H₂O → CaSO₄.2H₂O
Plaster of Paris (POP) should be stored in a moisture-proof container because Plaster of Paris, a powdery mass, absorbs water (moisture) to form a hard solid known as gypsum.
CaSO₄.1/2H₂O+ 3/2H₂O → CaSO₄.2H₂O