A) exothermic reaction
B) endothermic reaction
C) neither exothermic nor endothermic
D) None of the above
Correct Answer: A
Solution :
When water is added to cement an exothermic reaction occurs. During this process, the cement reacts with water to form a gelatinous mass which slowly sets into a hard mass having three dimensional network structure involving \[-Si-O-Si\] and \[-Si-O-Al-\] chains.
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