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Which of the following is used in the pr...

Which of the following is used in the preparation of mortar, a building material ?

A

CaO

B

`Ca(OH)_(2)`

C

`CaCO_(3)`

D

`CaCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Mortar is prepared by mixing slaked lime with 3-4 times its weight of sant `(SiO_(2))`. The mixture is made into a thick paste with gradual addition of water. The paste is called mortar and is used in building constructions. It sets into a hard mass by the loss of `H_(2)O` and the gradual absorption of `CO_(2)` from the air. Sometimes coal ash is mixed with lime instead of sand.
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