Write balanced chemical equations for the reduction between copper oxide by hydrogen.

Q. Write balanced equations for the following reactions:
(a) reduction of copper oxide by hydrogen.
(b) reduction of iron (III) oxide by carbon monoxide.
(c) reduction of lead (II) oxide by carbon.

Q. Write balanced chemical equations for the reduction reaction of lead (II) oxide by carbon.

Q. Write balanced chemical equations for the following word equation:
Zinc + Steam $\to$ Zinc oxide + Hydrogen

Q. Write a balanced chemical equation with the help of chemical symbols and formulas for the following reactions:

Q. Write the balanced equation for the 'the extraction of copper from copper pyrites by self-reduction.