Aliraza Aliraza

29-03-2017
Chemistry

contestada

Which of the following elements in the given reaction is reduced?
ZnO+H2 ...... Zn+H2O

(a) H2
(b) ZnO
(c) Zn
(d) O

Respuesta :

DWS0810 DWS0810

29-03-2017

Answer should be C. Look for oxidation numbers to determine whether they are being reduced or oxidised. Oxidation number of Zn in ZnO is +2, oxidation number of Zn (product) is 0. So oxidation number reduce by 2. Hence, Zn is being reduced.

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