Science Quiz 95

This is a timed quiz. You will be given 15 seconds per question. Are you ready?

The filament of an electric bulb is made of?

Tungsten

Nichrome

Silver and Gold

All of these

Correct! Wrong!

The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is?

Xenon

Helium

Argon

None

Correct! Wrong!

Tetraethyl lead is used as?

Petrol additive

Fire extinguisher

Mosquito repellent

None

Correct! Wrong!

Brass gets discolored in air because of the presence of which of the following gases in air?

Hydrogen sulphide

Carbondioxide

Nitrogen

None

Correct! Wrong!

Which of the following is used in pencils ?

Graphite

Charcoal

Silicon

None of these

Correct! Wrong!

Washing soda is the common name for?

Sodium bicarbonate

Sodium carbonate

Calcium bicarbonate

None

Correct! Wrong!

Which of the following is in liquid form at room temperature?

Lithium

Francium

Sodium

All of the above

Correct! Wrong!

Heavy water is?

Tritium oxide

Rain water

Deuterium oxide

None

Correct! Wrong!

Science Quiz 95

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