1.

Which of the following on thermal decomposition gives oxygen gas ?(a) Ag2O (b) Pb3O4 (c) PbO2 (d) All of these

Answer»

(d) 2Ag2O (s) → 4Ag (s) + O2 (g)

 2Pb3O4 (s) → 6PbO (s) + O2 (g)

 2PbO2 (s) → 2PbO (s) + O2 (g)



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