Question

Given below is a redox reaction

CuO(s) + H2(g) → Cu
(s) +H2
O(g)

a) Identify the species which undergo reduction and which undergo oxidation.​

Answer 1

Answer:

Copper oxide (CuO) undergoes reduction

Hydrogen (H2) undergoes oxidation

Explanation:

CuO(s) + H2(g) → Cu(s) +H2O(g)

Copper oxide (CuO) undergoes reduction whereas Hydrogen (H2) undergoes oxidation.

In reduction, the oxidation number decreases and it increases in oxidation.

In this above reaction, the oxidation number of copper (Cu) decreases from +2 to 0 and the oxidation number of hydrogen (H) increases from 0 to +1