Question

4) In the reaction CuO + H2 → Cu + H20, ​

Answer 1

Explanation:

Thus, hydrogen is oxidized and copper is reduced. ... On the other hand, oxygen of hydrogen peroxide in -1 state is reduced to -2 state in water. Thus, in this redox reaction, hydrogen peroxide acts as the oxidizing agent and lead sulfide acts as the reducing agent.

Answer 2

Displacement reaction

Explanation:

Hope it helps ❄️