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Science CBSE Homework Assignments
Class 10
Acids, Bases and Salts
Water of crystallization and Plaster of Paris
1.
Gypsum and Plaster of Paris
Task:
4
m.
1
.
Gypsum is used in the preparation of calcium sulphate hemihydrate.
False
True
2
.
When you mix oxalic acid with water, you get a lot of heat.
False
True
3
.
\((CaSO_4)_2.H_2O + 3H_2O\) is the product obtained when \(2CaSO_4.2H_2O\) is heated to \(373K\).
True
False
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