Question

what is meant by a pure substance? ​

Answer 1

$\huge\sf{Answer:-}$

• The substances two thing only which are from atom / molecule is know was pure substances.

• Melting and boiling points are the defined for the properites of pure substances.

• Oxygen is the right example for the pure substances.

Answer 2

Answer:

Such substance that has a uniform composition i.e. has particles with identical

properties is called pure substance. eg. sugar, salt, water, nitrogen etc