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Chemistry

Chemistry
Of the following compounds of calcium, the one having highest covalent character is

CaBr2
Cacl2
Cal2
CaF2

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Chemistry
Ozone depletion in the stratosphere is mainly caused by

Chlorogluorocarbons
SO2
NO2
NO

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Chemistry
The highest volume of gases in lower atmosphere is comprised of

Oxygen
Nitrogen
Hydrogen
Carbon dioxide

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Chemistry
The nuclear particles which are assumed to hold the nucleons together are

positrons
neutrons
mesons
electrons

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Chemistry
The gas used to dilute oxygen for breathing by deep sea divers is:

Helium
Argon
Nitrogen
Neon

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Chemistry
Milk is

Gel
Suspension
Foam
Emulsion

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MORE MCQ ON Chemistry

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