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in Chemistry by (30.0k points)

Describe the importance of the following: 

(i) limestone 

(ii) cement 

(iii) plaster of paris. 

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1 Answer

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1).Limestone- It is also known as marble and chalk.It is calcium carbonate(CaCO3).
Importance-
1.Used for preparation of lime and cement.
2.Used as flux during smelting of iron.Used in medicines and in tooth pastes.

2).Cement- it is an important building material used in different kind of construction works.
Importance-
1.Used in concrete and reinforced concrete.
2.Mixed with cement used in plastering.
3.Used in construction of tunnels,dams,roads,bridges etc.

3).Plaster of Paris-This is calcium sulphate hemihydrate.It is prepared by heating gypsum.
Importance-
1.Used for setting broken or fractured bones in the body.
2.For making statues,models and other decorative material.

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