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Chemistry

Chemistry
Higher concentration of nitrogen dioxide in atmosphere air causes

Cancer
Asphyxiation
Bronchitis
Corrosion

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Chemistry
Liquid Nitrogen boils at

97 Kelvin
82 Kelvin
77 kelvin
54 kelvin

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Chemistry
The chief constituent of vinegar is

Salycylic acid
Acetic acid
Oxalic acid
Formic acid

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Chemistry
Highest percentage of carbon is found in which form of coal?

Bituminous
Lignite
Peat
Anthracite

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Chemistry
Commercially, sodium bicarbonate is known as

Bleaching powder
Baking soda
Soda ash
Washing soda

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Chemistry
The metal ion present in Vitamin B12 is

Iron
Zinc
Cobalt
Nickel

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MORE MCQ ON Chemistry

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