1.

Hydrogen will not reduce:(a) Heated cupric oxide. (ส「qqf师3TRǐrF4)(b) Heated ferric oxide. (TRT Ras 3Taeina)(c) Heated stannic oxide. (TC RePa aTRr祠(d) Heated aluminium oxide. (T_faqq

Answer»

option A is the correct answer

because its reduction potential is higher than the hydrogen



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