S Block Elements Question 152
Question: Setting of cement is an
[DPMT 1984]
Options:
A) Exothermic reaction
B) Endothermic reaction
C) Neither exothermic nor endothermic
D) None of these
Show Answer
Answer:
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.
BETA
