Question

$CaO$ can be prepared by which of the following method?

• A. Born-haber Cycle
• B. Calcination of $Ca(OH{)}_2$
• C. Thermal decomposition of $CaC{O}_3$
• D. All of these

Answer 1

The correct option is D All of these

The Born–Haber cycle is an approach to analyse reaction energies. The cycle is concerned with the formation of an ionic compound from the reaction of a metal (often a Group I or Group II element) with a halogen or other non-metallic element such as oxygen.

Calcination of $CaO$: $Ca(OH{)}_2\to CaO+H_{2}O$

Thermal decomposition of $CaC{O}_3$: $CaC{O}_3\stackrel{△}{\to }CaO+C{O}_2$