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CHEMISTRY

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

Carbon dioxide
Methyl isocyanate
Aluminium Phosphide
Methyl bromide

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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

Eutrophication
Smog
None of these
Green house effect

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

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

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

Inorganic substances
Suspended solids
Oil and fatty substances
Gritty 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
Oxides of nitrogen and sulphur
Carbon dioxide and carbon monoxide
Carbon monoxide and nitrogen

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