Question

Define a pure substance. How many types of pure substances do you know?​

Answer 1

Answer:

(i) Pure substances contain only one kind of particles. (ii) Pure substances may be compounds or mixtures. (iii) Pure substances have the same composition throughout

Answer 2

Answer:

Pure substances: "A substance of a definite composition which has consistent properties throughout, is called a pure substance"

Types of pure substances:

Pure substances are of two types

(i) Elements (ii) Compounds.