Question

Write a balanced chemical equation for each of the following reaction and also classify them.
i. Lead acetate solution is treated with dilute hydrochloric acid to form lead chloride and acetic acid solution.
ii. A piece of sodium metal is added to absolute ethanol to form sodium ethoxide and hydrogen gas.
iii. Iron (III) oxide on heating with carbon monoxide gas reacts to form solid iron and liberates carbon dioxide gas.
iv. Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur and liquid water.

Answer 1

This is a double displacement as well as precipitation reaction.

Hydrogen  sulphide Oxygen Sulphur Water

This is a redox reaction.