Question

# Setting of cement is :

A
exothermic reaction
B
endothermic reaction
C
neither endothermic nor exothermic
D
None of the above

Solution

## The correct option is B exothermic reactionWhen water is mixed with cement to form a paste, reaction starts. In its pure form, the finely ground cement is extremely sensitive to water.  The action of changing from a fluid state to a solid state is calledsetting.That is heat is liberated as the water reacts with the cement during the setting so its a exothermic process.Chemistry

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