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Chemistry

Chemistry
The fiber least prone to catch fire is

Nylon
Polyester
Cotton
Terylene

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Chemistry
In ice, the number of hydrogen bonds per water molecule is

8
4
1
2

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Chemistry
Sea water can be purified by the process of

Fractional distillation
Distillation
Evaporation
Filtration

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Chemistry
The chemical used for cloud seeding for artificial rains is

Potassium Bromide
Potassium Nitrate
Silver Nitrate
Silver Iodide

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Chemistry
Which of the following is secondary air pollutant ?

Photochemical smog
NO2
SO2
Dust particles

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Chemistry
Non-stick kitchenwares are coated with

PVC
Graphite
Silicon
Teflon

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