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Question

Question: Which compound gives O2 on moderate heating?...

Which compound gives O2 on moderate heating?

A

CuOCuO

B

HgOHgO

C

ZnOZnO

D

AI2O3AI_{2}O_{3}

Answer

HgOHgO

Explanation

Solution

Oxides of metals having very high electrode potential (or having very low electro-positive character), give off oxygen on moderate heating

2HgO→Δ2Hg+O22HgO\overset{\quad\Delta\quad}{\rightarrow}2Hg + O_{2}