LESSON 5 SEPARATION OF SUBSTANCES

Impurities that settle down at the bottom of the container are called as-

• filtrate

• sediments

The particles of mud dissolved in water can settle down quickly by the addition of-

• kalium

• alum

To separate two miscible liquids this method is used commonly-

• evaporation method

• condensation process

• separating funnel

• distillation

This apparatus is used for-

• separating two solids

• separating soluble solids from liquids

• separating to miscible liquids

• separating two immiscible liquids

Identify the apparatus used in 5.6.and 7 number specified.

• Liebig's condenser

• Separating funnel

How are grain seeds removed from their stalks?

• Sieving

• Winnowing

• Threshing

• All of the above

What is a mixture?

• A chemical combination of two or more different substances.

• A physical combination of two or more different substances.

• A chemically pure substance.

• A special type of solution

Pure substances are made up of the same kind of atoms.

• True

• False

Tags

NGSS.MS-PS1-1

Which of the following is not a homogeneous mixture?

• Oxygen in water

• Tea

• Sugar and water

• Fried rice

A fruit salad is a

• solution

• mixture