Question

ii
) Observe the following reaction carefully and answer the questions below :
CuO+H
Cu + H2O
(a) Name the reductant in above reaction.
(b) Name the oxidant in above reaction.
(c) Give one more example of such reaction.​

Answer 1

Answer:

(a)Complete step by step answer:

Thus redox reactions are chemical reactions that involve the transfer of electrons between the reactants taking part in it. -Now, in the given reaction CuO + H2→Cu + H2O , copper which is in +2 oxidation state in cupric oxide gains 2 electrons and gets reduced to 0 state in copper atom.

(b)cupric oxide

In above reaction, cupric oxide (CuO) acts as an oxidising agent as it oxidises hydrogen(H2) to form water(H2O) and copper (Cu).

(c)This is an oxidation-reduction reaction, in which some species are oxidized and some reduced. The oxidation number of copper goes from +2 (in CuO) to 0 (in Cu), while hydrogen's oxidation number goes from 0 (in H2) to +1 (in water). The oxidation number of oxygen stays the same and is equal to -2.