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Chemistry

Chemistry
One of the constituents of tear gas is

Chloropicrin
Ether
Ethane
Ethanol

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Chemistry
Which of the following metals occurs in free state ?

Copper
Lead
Zinc
Iron

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Chemistry
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called

levigation
leaching
magnetic separation
liquation

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Chemistry
The gas used for filling weather balloons is

Helium
Hydrogen
Air
Nitrogen

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Chemistry
Milk tastes sour when kept in the open for sometime due to the formation of

Carbonic acid
Citric acid
Lactic acid
Acetic acid

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Chemistry
The process of removing calcium and magnesium from hard water is known as

Flocculation
Water softening
Filtration
Sedimentation

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MORE MCQ ON Chemistry

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