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Building Materials

Q1: The property by virtue of which lime sets under water, is known as

A slacking

B setting

C hydraulicity

D calcining.

ANS:C - hydraulicity

SLACKING:

Slacking is process of chemical combination of quick lime with water.

CALCINING:

Calcination, the heating of solids to a high temperature for the purpose of removing volatile substances.

SLACKING & CALCINING both processes while SETTING (you can say setting above water) & HYDRAULICITY (Setting underwater) and both of these are Property. Slacking is process of chemical combination of quick lime with water.
Lime sets under water because of Hydraulicity.



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