solids liquids and gases.

1) Which of the following is not true about the air?

• Air is a mixute of gases

• Air can be compressed

• Cold air rises up

• Air contains water vapour.

2) Which form of matter have definite shape?

• Gases

• Liquid

• Solids

• All of these

3) Which of the following is a hard solid?

• Rubber

• Wood

• Wool

• cotton

4) Which of the following does not catches fire ?

• Metal

• Wood

• Rubber

• Plastic

5) Which of the following solid is soluble in water

• Talcum powder

• Chalk dust

• Sugar

• Coal

6) What is the longform of LPG

• Liquid Petrol Gas

• Liquified Petroleum Gas

• Liquid Pure Gas

• Lead power Gas

7) What is CNG?

8) Which of the following gas is maximum in the air?

• Nitrogen

• Hydrogen

• Carbon dioxide

• Oxygen

9) Burning requires ________ gas.

• Carbon dioxide

• Oxygen

• Water vapour

• None of these

10) Which of the following can be stretched ?

• Metl wire

• cotton thread

• Rubber band

• Glass rod