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Hydrogen gas will not reduce:A. (a)Heated cupric oxideB. (b)Heat ferric oxideC. (c )Heated stannic oxideD. (d)Heated aluminium oxide |
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Answer» Correct Answer - D Al is more electroposition than `H`. No doubt Fe and Sn are also more electroposition than `H` but they are reduced from `Fe^(3+)` to `Fe^(2+), Sn^(4+) to Sn^(2+)`. |
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