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Chemistry

Chemistry
The main source of Naphthalene is

Charcoal
Camphor
Diesel
Coal-tar

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Chemistry
Which of the following gases is most toxic ?

Chlorine
Sulphur dioxide
Carbon dioxide
Carbon monoxide

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Chemistry
Philosopher’s wool is chemically

Aluminium oxide
Zinc oxide
Magnesium oxide
Calcium oxide

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Chemistry
Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful

Solar infrared radiation
SO2 in the air
Solar ultraviolet radiation
CO2 in the air

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Chemistry
Molality of pure water is

55.5
18
5.55
1.8

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Chemistry
A detergent is a

Catalyst
Drug
Soap
Cleansing agent

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MORE MCQ ON Chemistry

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