Question

which of the following statements for the reacstion is correct zno+co----zn+co2 (1)zno is oxidised (2)zno is reduced (3) co is reduced (4)co2 is oxidised

Answer 1

zno has lost oxygen so it has reduced. and co is oxidised.

Answer 2

Answer:

The correct statement is that in the reaction ZnO is reduced.

Explanation:

Oxidation is the process in which the oxidation number of an element increases whereas reduction is a process in which the oxidation number of an element decreases.

ZnO+CO → Zn+CO₂

In the above reaction, the oxidation number of C increases from +2 to +4 but that of Zn decreases from +2 to 0. Thus, here CO is oxidised and ZnO is reduced. This is a redox reaction as the oxidation states of the interacting species are changing.

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