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Chemistry

Chemistry
Ultra purification of a metal is done by :

Smelting
Zone melting
Leaching
Slugging

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Chemistry
L.P.G. is mostly liquefied

Methane
Oxygen
Butane
Hydrogen

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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
Uncertainty Principle of Hiesenberg
Avogadro's Law
Exclusion Principle of Pauli

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Chemistry
The total energy of revolving electron in an atom

Will always be positive
Can have any value above zero
Cannot be negative
Can never be positive

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Chemistry
Diamonds are glittering and attractive because light incident on them undergoes

Highest refraction
Hundred percent transmission
Multiple surface reflections
Multiple internal reflections

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Chemistry
The least preferred technique in the disposal of Municipal Solid Waste is

Incineration
Land filling
Bricketting
Composting

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MORE MCQ ON Chemistry

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