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When quicklime dissolves in water?

When quicklime dissolves in water?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A Heat is absorbed
  • B Heat is evolved
  • C Oxygen is liberated
  • D Hydrogen is given off
Correct Answer: Option 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.

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