Question

Which of the following is an example of a displacement reaction?

Options

• The combustion of natural gas.

• The reaction of a reactive metal with dilute acid.

• The electrolysis of water.

• The reaction of quick lime with water.

Answer 1

The reaction of a reactive metal with dilute acid.

Explanation:

In this reaction, a more reactive metal (like zinc or magnesium) displaces hydrogen from the dilute acid to form a metal salt and release hydrogen gas. This is a classic example of a single displacement reaction because the metal atom replaces the hydrogen atom in the acid's molecular structure.