Solution:The given statement is true.
Concept- A pure substance is a sample of matter with both definite and constant composition and distinct chemical properties.
Examples of Pure Substances from our house:
Water, table salt, sugar and baking soda are examples of pure substances.
Mixtures are substances that are made up of two or more kinds of particles and do not have a constant structure.
Example of Mixtures from our house:
Air (a mixture of gases like oxygen, carbon dioxide, etc.)
Lemon juice (a mixture of water, sugar, common salt and lemon extract)
Sand and water
Hence, the given statement is true.