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Chemistry

Chemistry
Liquid Nitrogen boils at

82 Kelvin
77 kelvin
54 kelvin
97 Kelvin

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Chemistry
Gas released during Bhopal tragedy was :

Potassium isothiocyanate
Ethyl isothiocyanate
Methyl isothiocyanate
Sodium isothiocyanate

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Chemistry
The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle?

3 billion years
13 days
0.01 minute
100 years

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Chemistry
Which one of the following is a greenhouse gas ?

Sulphur dioxide
Nitrogen
Carbon dioxide
Helium

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Chemistry
Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has

High nuclear charge
Stable half filled 2p sub level
Smaller atomic radius
High bond dissociation energy

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Chemistry
Which among the following is a carbohydrate ?

Nylon
Hydrogen peroxide
Cane-sugar
Turpentine

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