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CHEMISTRY

Chemistry
'Bhopal gas tragedy' 1984 is related to which gas

Methyl bromide
Carbon dioxide
Aluminium Phosphide
Methyl isocyanate

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Chemistry
When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called

None of these
Smog
Green house effect
Eutrophication

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Chemistry
Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?

European Union, China, USA, India
USA, India, China, European Union
China, USA, European Union, India
China, India, European Union, USA

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Chemistry
The function of skimming tank in sewage treatment is to remove

Gritty substances
Inorganic substances
Suspended solids
Oil and fatty substances

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Chemistry
Acid rain is caused due to emission of which of the following in to the atmosphere ?

Ozone and carbon dioxide
Carbon dioxide and carbon monoxide
Oxides of nitrogen and sulphur
Carbon monoxide and nitrogen

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