Question

The composition of a pure substance cannot be altered by any _______ means.

Answer 1

• Anything that occupies space and has mass is known as Matter.
• 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).
• For example - Water, Carbon dioxide, Gold, etc.
• Pure substances are generally homogenous and their composition remains the same throughout.
• We cannot separate the substances present in a pure substance by using a physical means.
• Hence, the composition of a pure substance cannot be altered by any physical means.