Welcome to the Science Quiz 142

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

From which mineral is radium obtained?

Haematite

Limestone

Pitchblende

None

Correct! Wrong!

The most important ore of aluminium is?

Calcite

Bauxite

Calamine

None

Correct! Wrong!

Permanent hardness of water can be removed by adding?

Chlorine

Washing soda

Xenon

All of the above

Correct! Wrong!

The property of a substance to absorb moisture from the air on exposure is called ?

Deliquescence

Efflorescence

Osmosis

None of these

Correct! Wrong!

Which metal pollute the air of a big city?

Cadmium

Lead

Chromium

None

Correct! Wrong!

Potassium Permanganate is used for purifying drinking water, because?

It is an oxidizing agent

It is a reducing agent

It is a sterilizing agent

None

Correct! Wrong!

The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of?

Sulphur

Fluorine

Deuterium

None

Correct! Wrong!

Which of the following does not contain a coinage metal?

Zinc and Gold

Copper and Silver

Silver and Gold

All of these

Correct! Wrong!

Science Quiz 142

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Welcome to the Science Quiz 142

From which mineral is radium obtained?

The most important ore of aluminium is?

Permanent hardness of water can be removed by adding?

The property of a substance to absorb moisture from the air on exposure is called ?

Which metal pollute the air of a big city?

Potassium Permanganate is used for purifying drinking water, because?

The chemical (ethyl mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of?

Which of the following does not contain a coinage metal?

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