Question

What are pure substances?

Answer 1

Pure Substances :

A pure substance is one that is made up of only one kind of particle (atoms or molecules)

For Example:(1) Sulphur element is made up of only one kind of sulphur atom.

(2) Water is made up of only one kind of water molecule. All the elements and compounds

are pure substances because they contain only one kind of particle.

For Example: Hydrogen,Oxygen,Nitrogen,Chlorine,Iodine,carbon,Iron,Copper etc are pure

substances(elements).

Water, sodium chloride, Hydrochloric acid, Camphor, etc. are pure substances (compounds).

Pure substances are homogenous throughout its mass, they cannot be separated into other kinds of matter by physical processes