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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
Question:
4
m.
1
.
Due to the presence of acid in curd, it has sour taste.
True
False
2
.
When you mix formic acid with water, you get a lot of heat.
True
False
3
.
In laboratories, calcium sulphate hemihydrate is used to seal the air gaps in the apparatus.
True
False
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