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Chemistry

Chemistry
The water pollution in river is measured by the dissolved amount of

Chlorine
Ozone
Oxygen
Nitrogen

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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
Helium gas is used in gas balloons instead of hydrogen gas because it is

More abundant than hydrogen
Non-combustible
More stable
Lighter than hydrogen

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Chemistry
The function of sedimentation tank in sewage treatment is to:

Aerate the sewage
Disinfect the sewage
Remove water content
Remove suspended solids

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Chemistry
The smog is essentially caused by the presence of

Oxides of N and S
O3 and N2
O2 and N2
O2 and O3

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Chemistry
Drinking soda is

Oxidant
Neutral
Acidic
Alkaline

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MORE MCQ ON Chemistry

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