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Chemistry

Chemistry
The common refrigerant in domestic refrigerator is

Freon
Oxygen
Nitrogen
Neon

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Chemistry
Charcoal is used in water treatment as a/an

Adsorbent
Absorbent
Coagulant
Solvent

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Chemistry
In upper layer of atmosphere ozone is formed by

Subjecting oxygen to high pressure
The action of nitrogen on oxygen in atmosphere
The combination of oxygen molecules
The action of ultraviolet rays on oxygen

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Chemistry
The most abundant inert gas in the atmosphere is

Neon
Argon
Helium
Krypton

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Chemistry
The monomers of dacron are

Ethylene glycol and terephthalic acid
Decane and decanol
Ethylene glygol and phthalic acid
Decanone and decanol

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Chemistry
Liquid Nitrogen boils at

97 Kelvin
82 Kelvin
77 kelvin
54 kelvin

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MORE MCQ ON Chemistry

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