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Chemistry

Chemistry
What is the principal ore of aluminium ?

Copper
Bauxite
Dolomite
Lignite

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Chemistry
Which one of the following elements is least likely to be found in commercial fertilisers?

Phosphorous
Nitrogen
Potassium
Silicon

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Chemistry
What is the maximum Water Vapour content in the atmosphere?

2 to 3 per cent
3 to 4 per cent
4 to 5 per cent
5 to 6 per cent

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Chemistry
Which of the following metals is not a pollutant ?

Aluminium
Arsenic
Lead
Mercury

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Chemistry
Commonly used antiseptic 'Dettol' is a mixture of

Chloroxylenol + terepineol
Phenol + terepineol
O-chlorophenoxylenol + terepineol
O-cresol + terepineol

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Chemistry
The most abundant constituent of atmospheric air is :

Oxygen
Carbon
Nitrogen
Hydrogen

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MORE MCQ ON Chemistry

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