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Question

The setting of cement is


A

Rapid combustion reaction

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B

enzyme catalyzed organic reaction

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C

endothermic reaction

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D

exothermic reaction

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Solution

The correct option is D

exothermic reaction


When water is added to cement, a series of simultaneous reactions take place. Most of these reactions are exothermic. Overall, the setting of cement is highly exothermic with the period of maximum heat evolution ranging between 11-20 hours.


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