Chemistry science quiz 22

Posted By: Nidhi Pal

Date: January 21, 2025

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

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

Argon

Helium

Xenon

None of these

Correct! Wrong!

Which of the following is used in pencils ?

Silicon

Charcoal

Graphite

None of these

Correct! Wrong!

Carbon, diamond and graphite are together called?

Allotropes

Isomers

Isotopes

None

Correct! Wrong!

Tetraethyl lead is used as?

Mosquito repellent

Fire extinguisher

both (a) & (b)

Petrol additive

Correct! Wrong!

Heavy water is?

Deuterium oxide

Carbon monoxide

Sulphur dioxide

All of these

Correct! Wrong!

The filament of an electric bulb is made of?

Silver and Gold

Nichrome

Tungsten

None of these

Correct! Wrong!

Washing soda is the common name for?

Calcium bicarbonate

Sodium carbonate

Sodium bicarbonate

none

Correct! Wrong!

Chemical formula for water is?

H2O

NaAlO2

Al2O3

None of these

Correct! Wrong!

Chemistry science quiz 22

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