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Chemistry

Chemistry
Liquid Nitrogen boils at

77 kelvin
97 Kelvin
82 Kelvin
54 kelvin

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Chemistry
Neoprene is a polymer of

Isobutane
Chloroprene
Isoprene
Isopentane

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Chemistry
If there is one million Mg2+ ions in MgCl2, how many chloride ions are there?

Ten million
One million
Half a million
Two million

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Chemistry
The most abundant element in the earth’s atmosphere is

Oxygen
Krypton
Nitrogen
Argon

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Chemistry
Smoke is formed due to

Gas dispersed in gas
Solid dispresed in liquid
Solid dispersed in gas
Gas dispresed in solid

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Chemistry
Which one of the following metals is used to galvanise iron ?

Lead
Copper
Mercury
Zinc

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MORE MCQ ON Chemistry

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