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Chemistry

Chemistry
Which of the following is the major constituent of LPG?

Methane
Ethane
Butane
Propane

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Chemistry
Pollutant from motor car exhaust that causes mental disease is

Lead
SO2
Hg
NO2

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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 –

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

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Chemistry
Which of the following is used to increase the anti-knocking property of petrol ?

Trimethyl lead
Tetramethyl lead
Tetraethyl lead
Triethyl lead

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Chemistry
Piped Natural Gas (PNG) is used for

Welding
Cooking
Anaesthesia
Mining

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Chemistry
In addition to hydrogen, the other abundant element present on Sun’s surface is

Argon
Helium
Neon
Oxygen

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MORE MCQ ON Chemistry

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