Science Quiz 108

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

In which of the following activities silicon carbide is used?

Cutting very hard substances

Disinfecting water of ponds

Making cement and glass

All of these

Correct! Wrong!

Which of the following metals remain in liquid for under normal conditions?

Mercury

Uranium

Radium

None

Correct! Wrong!

Among the various allotrope of carbon?

Diamond is the hardest, lamp black is the softest

Diamond is the hardest, graphite is the softest

Diamond is the hardest, coke is the softest

All of the above

Correct! Wrong!

Bromine is a?

Black solid

Red liquid

Colorless gas

None

Correct! Wrong!

Carbon, diamond and graphite are together called?

Isotopes

Isomers

Allotropes

None

Correct! Wrong!

Potassium nitrate is used in?

Salt

Fertilizer

Medicine

None

Correct! Wrong!

Chemical formula for water is?

NaAlO2

H2O

Al2O3

None of these

Correct! Wrong!

Soda water contains?

Carbon dioxide

Sulphuric acid

Carbonic acid

None

Correct! Wrong!

Science Quiz 108

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