Which of the following metals gives reddish powder on reaction with O_ – InterviewSolution

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1.	Which of the following metals gives reddish powder on reaction with O_(2) higher temperature?
Answer» Fe Pb Zn Sn Solution :At higher temperature oxygen on reaction with iron gives REDDISH BROWN powder with crakling noise due to the FORMATION of ferric tetraoxide or ferrose ferric oxide `3Fe+2O_(2)toFe_(3)O_(4)` Reddish brown powder

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