When quicklime dissolves in water?
- heat is absorbed
-
heat is evolved
- oxygen is liberated
- hydrogen is given off
The correct answer is: B
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.