Extraction of Metals - Result Question 37
####37. Hydrogen gas will not reduce
(a) heated cupric oxide
(b) heated ferric oxide
(c) heated stannic oxide
(d) heated aluminium oxide
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Solution:
####37. Hydrogen gas will not reduce
(a) heated cupric oxide
(b) heated ferric oxide
(c) heated stannic oxide
(d) heated aluminium oxide
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