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Chemistry

Chemistry
Which is the highest quality of hard coal?

Anthracite
Lignite
Peat
Bituminous

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Chemistry
Denatured spirit is ethanol mixed with

Kerosene
Water
Petrol
Pyridine

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Chemistry
An acid having basicity one is

Sodium dihydrogen phosphate
Disodium hydrogen phosphate
Phosphoric acid
Sodium phosphate

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Chemistry
Which one of the following is found in kidney stones?

Calcium acetate
Sodium chloride
Sodium oxalate
Calcium oxalate

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Chemistry
The pollutant responsible for ozone holes is ________

CFC
CO
CO2
SO2

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Chemistry
Which of the following is the maximum number of electrons that can be present in M-shell?

8
32
18
2

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