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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 tworeactants.

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