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Air and Atmosphere — CHEMISTRY STD 7 — Question

ICSE BoardEnglish MediumSTD 7CHEMISTRYAir and Atmosphere1 Mark
Question
Give a balanced equation to obtain oxygen from Mercuric oxide.
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Answer

Mercuric oxide
$\underset{\text { (Orange red) }}{2 HgO } \longrightarrow \underset{\text { (silvery grey) }}{2 Hg + O _2 \uparrow}$

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