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Question
Name a metallic oxide which on thermal decomposition is reduced to metal.
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Solution
Metal oxide on thermal decomposition reduces to metal:
\[\ce{\underset{\text{mercury (II) oxide}}{2HgO}->[\Delta]\underset{\text{metal mercury}}{2Hg} + O2}\]
\[\ce{2Ag2O->[\Delta]4Ag + O2}\]
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