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Chemistry

Chemistry
Which of the following is the best fuel in terms of energy released per gram of fuel?

Ethanol
Methane
Butane
Hydrogen

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Chemistry
Which of the following is secondary air pollutant ?

Dust particles
SO2
Photochemical smog
NO2

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Chemistry
The major harmful gas emitted by automobile vehicles which causes air pollution is

Carbon Monoxide
Ozone gas
Methane
Carbon dioxide

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Chemistry
'All the four quantum numbers of two electrons in an atom are not the same.' It is the law of –

Uncertainty Principle of Hiesenberg
Avogadro's Law
Exclusion Principle of Pauli
Hund's rule of maximum multiplicity

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Chemistry
The gas used for filling weather balloons is

Hydrogen
Air
Nitrogen
Helium

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Chemistry
How many neutrons are there in 92U238 atom ?

92
238
146
330

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MORE MCQ ON Chemistry

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