MEDIUM
Earn 100

Solute particles in a solution do not settle when left undisturbed. Can you give a reason? If solute particles are settling down, can we call it as a homogeneous mixture?

Important Questions on Is Matter around Us Pure?

EASY
The alloy nichrome contains
HARD
A mixture of sulphur and carbon disulphide is:
EASY

Name an alloy of lead and tin.

MEDIUM
Which one of the following alloy does not contain copper?
MEDIUM
What are alloys? Give two examples. 
MEDIUM
What is heat treatment of steel? Explain.
MEDIUM
Which one of the following is not a homogeneous mixture?
HARD
List the points of differences between homogeneous and heterogeneous mixtures.
EASY
All mixtures are homogeneous in nature.
EASY

A solution of glucose in water is a homogeneous mixture.

HARD
Why is kerosene considered a mixture? 
EASY
In a mixture containing sugar and sand, the constituent(s) is/are _____.
   
MEDIUM
Explain why coal is regarded as a mixture and not a pure substance.
EASY
Brass is a mixture of two elements copper and tin.
EASY

Match the items in column A with the items in column B.

Column A Column B
1.Bronze      a.Compound
2.Glucose  b.Element having the highest abundance in the earth's crust
3.Silver      c.Mixture
4.Oxygen      d.Metal having the highest abundance in the earth's crust
5.Face cream      e.Element
6.Soap lather      f.Emulsion
7.Aluminium      g.Tyndall effect
8.Colloid          h.Foam

 

EASY
Which of the following is a homogeneous material?
EASY

Clean air is a _____ mixture.

EASY

A single substance of a definite composition is called a/an _____.

EASY
Name two types of mixtures.