Question

define pure dustance​

Answer 1

Answer:

chemical substance:-

A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds.

_________________________

▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎▪︎

Answer 2

Any substance is said to be pure if and only if it is made up of single type of particles means all the particles of that substance should be of same chemical nature.

For example - water, sugar, salt and etc.