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Question


Which of the following compound is obtained when quicklime reacts with water?


Options:
A .   Ca(NO3)2
B .   Ca(HCO3)2
C .   Ca(OH)2
D .   CaCO3
Answer: Option C
:
C
Slaked lime (Ca(OH)2) is formed when quicklime (CaO) reacts with water. The equation of the reaction is given below:

CaO(s)+H2O(l)Ca(OH)2(aq)+Heat


This is an example of a combination reaction because there is only one product that is being formed from the reaction between the two reactants.



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