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Chemistry

Chemistry
How many atoms of oxygen are in a glucose molecule

3
6
4
10

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Chemistry
The term 'brown air' is used for

Sulphurous smog
Photochemical smog
Acid fumes
Industrial smog

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Chemistry
The quality of petrol is expressed in terms of

Cetane number
Gold number
Octane number
Added unlead compounds

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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 –

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

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Chemistry
The common refrigerant in domestic refrigerator is

Nitrogen
Oxygen
Freon
Neon

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Chemistry
For extinguishing fire, we use

Marsh gas
Carbon Monoxide
Carbon Dioxide
Hydrogen

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MORE MCQ ON Chemistry

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