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Chemistry

Chemistry
Liquid Nitrogen boils at

82 Kelvin
54 kelvin
97 Kelvin
77 kelvin

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Chemistry
The element absorbed both in cation and anion form is

Sulphur
Calcium
Phosphorus
Nitrogen

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Chemistry
When cathode rays strike a target of high atomic weight, they give rise to

?-rays
Positive rays
X-rays
? and ? rays

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Chemistry
The ‘Green House effect’ is produced due to the presence of excess amount of

Nitrogen dioxide
Methane
Carbon monoxide
Sulphur dioxide

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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
Hund's rule of maximum multiplicity
Avogadro's Law

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Chemistry
The pair of compounds used as anaesthetic in medicines :

Nitrous oxide, Chloroform
Ether, Ammonia
Nitrogen dioxide, ether
Chloroform, Nitrogen dioxide

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