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Chemistry

Chemistry
Earth’s atmosphere is an envelope of gases extending to a height of

100 km
150 km
300 km
200 km

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Chemistry
The graphite rods in the nuclear reactor

react with U to release energy
produce neutrons
undergo combustion which triggers the nuclear fission
convert fast moving neutrons into thermal neutrons

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Chemistry
In organic compounds, nitrogen is estimated by

Carius method
Dumas method
Victor-Meyer's method
Liebig's method

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Chemistry
Green house effect is accelerated by

All of these
Increased transportation activity
Rapid industrialization
Deforestation

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Chemistry
The wire of flash bulbs is made up of

Mg
Ba
Ag
Cu

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Chemistry
Which one of the following is found in kidney stones?

Calcium acetate
Sodium oxalate
Sodium chloride
Calcium oxalate

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