Question

2. Explain with example.
a)Mixture
b)Pure Substance
c) Element
d) SSuspension
please answer.

Answer 1

Mixture:-

• A substance which consists of two or more elements and have no fixed composition. for example:- sand and salt , sugar and salt. There is two types of mixtures:-

1. Homogeneous mixtures .
2. Heterogeneous mixtures.

Pure substance:-

• A pure substance is a Homogeneous material consisting of a single type of particles and definite set of properties .For example:- Copper, oxygen , iron .

Suspension:-

• It is a Heterogeneous mixtures. The solute particles are visible with naked eyes. for example:- Mixture of chalk powder or sand in water.

●Hope it helps you

Answer 2

Answer:

b.Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure.Example All elements are pure except few like gold, copper, oxygen etc

d.Suspension is a heterogeneous mixture in which the small particles of solids or solute are spread through out a liquid without dissolving in it.Example Mixture of chalk and water.

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