Chemistry · Group 13 to Group 18 Elements
The compound which gives off oxygen on moderate heating is :
The compound which gives off oxygen on moderate heating is :
- A. Cupric oxide
- B. Mercuric oxide
- C. zinc oxide
- D. Aluminium oxide
Step-by-step solution
Mercuric oxide (HgO) decomposes upon moderate heating (around 500°C) to produce mercury and oxygen gas. In contrast, cupric oxide decomposes at higher temperatures, while zinc oxide and aluminium oxide are very stable and do not release oxygen under moderate heating.
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