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Chemistry

Chemistry
Liquid Nitrogen boils at

54 kelvin
97 Kelvin
77 kelvin
82 Kelvin

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Chemistry
The monomer of polythene is

vinyl chloride
None of these
ethylene
ethyl alcohol

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Chemistry
Alcohol prepared by the distillation of wood is :

Ethyl alcohol
Methyl alcohol
Glycerol
Propyl alcohol

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Chemistry
Fertiliser having high nitrogen content is :

Ammonium sulphate
Ammonium nitrate
Calcium citrate
Urea

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Chemistry
Surface water is a better source of drinking water because it is poor in

Arsenic
Algae
Dust
Bacteria

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Chemistry
Which of the following acts as best adsorbent?

Activated Charcoal
Charcoal
Carbon black
Activated Coconut Charcoal

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