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Chemistry

Chemistry
The atmospheric gas that is mainly responsible for Green House effect :

Carbondioxide
Nitrogen
Oxygen
Ozone

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Chemistry
Chemical name of vinegar is

Acetone
Acetic acid
Ethanol
Formaldehyde

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Chemistry
Gunpowder consits of a mixture of

Sulphur, sand and charcoal
Sand and TNT
Nitre, sulphur and charcoal
TNT and charcoal

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Chemistry
Percentage of lead in lead pencils is

40
31-66
80

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Chemistry
Commonly used antiseptic 'Dettol' is a mixture of

O-chlorophenoxylenol + terepineol
Phenol + terepineol
O-cresol + terepineol
Chloroxylenol + terepineol

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Chemistry
The lowest layer of earth's atmosphere is

Mesosphere
Stratosphere
Troposphere
Ionosphere

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MORE MCQ ON Chemistry

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