Question : Which of the following is commonly known as quicklime?

Option 1: CaSO4

Option 2: CaCl2

Option 3: Ca(OH)2

Option 4: CaO


Team Careers360 20th Jan, 2024
Answer (1)
Team Careers360 22nd Jan, 2024

Correct Answer: CaO


Solution : The correct answer is CaO.

Calcium oxide (CaO) is commonly known as quicklime. Quicklime is a white, crystalline solid at room temperature and is produced by heating calcium carbonate (CaCO 3 ), typically in the form of limestone, in a process called calcination. The chemical reaction is as follows:

CaCO 3 ​→ CaO + CO 2

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