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Chemistry

Chemistry
The term 'brown air' is used for

Acid fumes
Photochemical smog
Sulphurous smog
Industrial smog

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

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Chemistry
Bridgmanite is

Earth’s most abundant minera
A bridge on the river Thames
Name of a music
Name of a game

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Chemistry
________ gives hardness to stainless steel.

Carbon
Zinc
Tin
Lead

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Chemistry
Which of the following is used to remove rust stains on cloth?

Lime
Petrol
Oxalic acid solution
Kerosene

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Chemistry
Heating of a ore below its melting point in the absence of air is known as

Refining
Roasting
Calcination
Smelting

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MORE MCQ ON Chemistry

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