Science Quiz 50

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

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

Deuterium

Fluorine

Sulphur

both (a) & (b)

Correct! Wrong!

Chemical formula for water is?

H2O

NaAlO2

Al2O3

None of these

Correct! Wrong!

Which of the following is used in pencils ?

Graphite

Charcoal

Silicon

None of these

Correct! Wrong!

The most important ore of aluminium is?

Calcite

Bauxite

Calamine

None of these

Correct! Wrong!

Heavy water is?

Deuterium oxide

Carbon monoxide

Sulphur dioxide

All of these

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!

From which mineral is radium obtained?

Pitch blende

Limestone

Haematite

none

Correct! Wrong!

The filament of an electric bulb is made of?

Nichrome

Tungsten

Silver and Gold

None of these

Correct! Wrong!

Science Quiz 50

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Science Quiz 50

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

Chemical formula for water is?

Which of the following is used in pencils ?

The most important ore of aluminium is?

Heavy water is?

Potassium Permanganate is used for purifying drinking water, because?

From which mineral is radium obtained?

The filament of an electric bulb is made of?

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Science Quiz 50

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

Chemical formula for water is?

Which of the following is used in pencils ?

The most important ore of aluminium is?

Heavy water is?

Potassium Permanganate is used for purifying drinking water, because?

From which mineral is radium obtained?

The filament of an electric bulb is made of?

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Science Quiz 51

Science Quiz 49

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