Hydrogen will not reduce

Heated cupric oxide

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Heated ferric oxide

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Heated stannic oxide

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Heated aluminium oxide

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Solution

The correct options are
B
Heated ferric oxide

D
Heated aluminium oxide

$H_{2}$ will not reduce heated $A l_{2} O_{3}$ and $Z n O$

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Similar questions

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C u O \to A + O_{2}

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