Question

meaning of matter and its all pure substances

Answer 1

Hi

$\textbf{ Matter }$

Anything that has volume and occupies space is called Matter.

Eg : Book is a matter 'cause it occupies a certain amount of space and have a volume.

$\textbf{Pure Substances }$

Chemistry defines Pure Substances as Substances which have a definite composition.

Eg : Element.

Hope it helps

Answer 2

The term has specific meaning in chemistry A pure substance is a sample of matter both definite and constant composition with distinct chemical properties to, avoid confusion in chemistry a pure substance is often referred to as chemical substance

Hope it will help you ....