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Chemistry

Chemistry
Which of the following is used for refrigeration?

Chlorine
Phosphine
Sulphur dioxide
Freon

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Chemistry
Which of the following produces highest amount of energy upon oxidation?

An alkane
Protein
Fat
Glucose

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Chemistry
KMnO4 can be used as

Disinfectant
Insecticide
Pesticide
Fertilizer

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Chemistry
Aquaregia is a mixture of the following in the ratio 1 : 3 by volume

Conc. HNO3 and conc. HCl
Conc. HCl and conc. HNO3
Conc. HNO3 and conc. H2SO4
Dil. HCl and dil. HNO3

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Chemistry
The main source of Naphthalene is

Coal-tar
Diesel
Charcoal
Camphor

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Chemistry
Pollutant from motor car exhaust that causes mental disease is

Lead
Hg
NO2
SO2

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MORE MCQ ON Chemistry

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