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Chemistry

Chemistry
Which of the following fuels causes minimum environmental pollution?

Diesel
Coal
Hydrogen
Kerosene

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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 –

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

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Chemistry
A substance which readily forms colloidal solution in contact with water is called

Hydrophobic colloid
Associated colloid
Extrinsic colloid
Hydrophilic colloid

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Chemistry
Impure camphor is purified by

Fractional crystallisation
Sublimation
Fractional distillation
Steam distillation

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Chemistry
Sulphuric acid is

Dibasic
Monobasic
Tribasic
Tetrabasic

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Chemistry
Which of the following is used as a lubricant in heavy machines?

Sulphur
Bauxite
Graphite
Phosphorus

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MORE MCQ ON Chemistry

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