Seperation of Substances

How many types of mixtures are there ?

• 1

• 3

• 2

• 7

____ are formed when two or more substances are mixed together in any ratio.

• Mixtures

• components

• condensation

• none of these

vegetable salad

• homogeneous

• heterogeneous

mixed nuts

• homogeneous

• heterogeneous

A solution of salt in water is ______.

• Heterogeneous

• Pure substance

• Homogenous

• None of these

A mixture contains ___ or ____ different substances.

• Less or more

• Two or more

• One or more

• I don’t know

Steel is a homogeneous mixture of ____ and ______, formed on mixing them in their molten states.

• Silver

• Iron

• Oxygen

• Nitrogen

• Carbon

Sugar and sand are ___________ mixture.

(in lowercase letters)

Examples of pure substance

• Air

• Sugar solution

• Steel

• Mercury

Milk is a mixture.?

• True

• Maybe

• False

• Maybe not