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Chemistry

Chemistry
The chief constituent of natural gas is:

Nitrogen
Helium
Methane
Propane

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Chemistry
Spirit in contact with body gives cool sensation because it is :

Highly volatile
Liquid
Transparent
A good conductor

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Chemistry
Global warming is mainly due to accumulation of

Oxides of sulphur
Oxides of nitrogen
Carbon monoxide
Carbon dioxide

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Oxygen
Nitrogen
Helium
Hydrogen

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Chemistry
Methanoic and ethanoic acids can be distinguished by the action of

NaHCO3
Tollen's reagent
NaOH
SOCl2

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Chemistry
Which of the following caused radioactive pollution along the coast of Kerala ?

Zinc
Radium
Plutonium
Thorium

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