Building Materials
Assertion A : Pure lime takes a long time to develop adequate strength.Reason R : Pure lime has slow hardening characteristics.Select your answer according to the coding system given below:

A is true but R is false
Both A and R is true and R is correct explanation of A
Both A and R is true and R is not a correct explanation of A
A is false but R is true

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Building Materials
Acrylic sheets

Possess the light transmission rate of 93%
Are generally unaffected by most household detergents
All of these
Possess 10 to 17 times greater breakage resistance than that of glass of equivalent thickness

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