Question

A pure substance has a definite set of properties.

• A. True
• B. False

Answer 1

The correct option is A True

• Anything that occupies space and has mass is known as Matter.
• The matter is broadly categorized into two types - Pure and Impure substances.
• Pure substances are those substances that are made up of only one kind of particle (atoms or molecules).
• Pure substances are either an element or a compound.
• For example - $\mathrm{Gold}\left(\mathrm{Au}\right),\mathrm{Silver}\left(\mathrm{Ag}\right),\mathrm{Water}\left({\mathrm{H}}_2\mathrm{O}\right),\mathrm{Carbon}\mathrm{dioxide}\left({\mathrm{CO}}_2\right),\mathrm{etc}.$
• Since, pure substances are made up of same kind of elements or molecules. They have a definite set of properties.

Hence, the given statement is True.