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Chemistry

Chemistry
Highest percentage of carbon is found in which form of coal?

Bituminous
Peat
Anthracite
Lignite

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Chemistry
Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2

B and c
A and c
A and b
C and d

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Chemistry
The gas used to dilute oxygen for breathing by deep sea divers is:

Helium
Nitrogen
Neon
Argon

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Chemistry
Thermal electricity is generated by using which of these ?

Coal and Natural Gas only
Coal, Natural Gas and Petroleum
None of these
Coal only

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Chemistry
The element used in the manufacture of safety matches is

Magnesium
Silicon
Sulphur
Phosphorous

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Chemistry
Commonly used antiseptic 'Dettol' is a mixture of

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

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MORE MCQ ON Chemistry

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