nature of matter and composition - Category wise Question and Answer Practice Test with Solutions

Question : 11

The process used to separate oil and water is

a) separating funnel

b) sublimation

c) distillation

d) chromatography

Question : 12 [NDA]

The latest discovered state of matter is

a) plasma

b) solid

c) Bose-Einstein condensation

d) liquid

Question : 13

Wooden pencil used for writing contains

a) Salt

b) Graphite

c) Lead

d) Cane sugar

Question : 14

Brass is an example of

a) homogeneous mixture

b) element

c) compound

d) heterogeneous mixture

Question : 15

When dispersed phase is liquid and dispersion medium is gas then the colloidal system is called

a) jellies

b) clouds

c) smoke

d) emulsions