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Chemistry

Chemistry
Isobars are lines joining places having equal

Height above sea-level
Pressure
Population
Rainfall

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Chemistry
Nylon is a type of

Polyolefin
Polyamide
Polyester
Acrylic

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Chemistry
If lime water is kept in the air, it turns milky due to presence of :

Sulphurdioxide
Nitrogen
Oxygen
Carbondioxide

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Chemistry
Aspirin is

Acetyl Salicilic acid
Methoxy benzoic acid
Phenyl Salicilate
Methyl Salicilate

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Chemistry
Pollutant from motor car exhaust that causes mental disease is

Lead
NO2
Hg
SO2

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Chemistry
The material known in commerce as Terylene is a

Modified natural fibre
Natural fibre
Blend of cotton and silk
Synthetic fibre

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