A. heat is absorbed
B. heat is evolved
C. oxygen is liberated
D. hydrogen is given off
Correct Answer:
Option B – heat is evolved
Explanation
– When quicklime is added to water, it forms slaked lime along with the evolution of heat. There will be a rise in the temperature of the bucket. Calcium oxide reacts with water to form calcium hydroxide, also called slaked lime.
– That is adding water to quicklime produces an exothermic reaction (gives out heat) and hydrated lime.
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