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Chemistry

Chemistry
Which is the highest quality of hard coal?

Bituminous
Lignite
Peat
Anthracite

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Chemistry
Isobars are lines joining places having equal

Pressure
Height above sea-level
Rainfall
Population

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Chemistry
The material known in commerce as Terylene is a

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

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Chemistry
Which of the following vitamins is generally excreted by human in urine?

Vitamin D
None of these
Vitamin C
Vitamin B

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Chemistry
Maximum permissible concentration of copper in drinking water in mg/L is

0.05
2
1
0.01

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Chemistry
The formula C6H5-CO-CH3 represents

Acetophenone
Phenyl acetate
Acetone
Acetic acid

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