Question

Why do we need pure substance .answer for class 6

Answer 1

We need pure substances because of the following reasons: A pure substance has a fixed melting and fixed boiling point. A pure substance has its characteristic taste, colour and odour. Pure substances can not be broken further into more simple substances by any physical means.

Answer 2

Explanation:

We need pure substances because of the following reasons:

1) A pure substance has a fixed melting and fixed boiling point.

2) A pure substance has its characteristic taste, colour and odour.

3) Pure substances can not be broken further into more simple substances by any physical means.