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Chemistry

Chemistry
Ultraviolet radiation striking the earth is due to the depletion of

Ozone
Carbon monoxide
Oxygen
Carbon dioxide

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Chemistry
Synthetic detergents are prepared from

Glycerides
Sodium salts of higher fattyacids
Hydrocarbons of petroleum
Potassium salts of higher fatty-acids

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Chemistry
The depletion of Ozone layer is mainly due to

Volcanic eruptions
Radioactive rays
Chlorofluorocarbons
Aviation fuels

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Chemistry
Which of the following vegetable oils does not contain essential fatty acids ?

Groundnut oil
Mustard oil
Sunflower oil
Coconut oil

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Chemistry
Liquid Nitrogen boils at

82 Kelvin
77 kelvin
97 Kelvin
54 kelvin

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Chemistry
The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

1 gram of molecule
0.5 gram of molecule
10 gram of molecule
5 gram of molecule

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