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Chemistry

Chemistry
Supersonic jet causes pollution by thinning of

O 2 layer
SO2 layer
O3 layer
CO2 layer

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Chemistry
Which one of the following statements is not correct? Vulcanisation of rubber makes it

Strong and hard
Chemical resistant
Soft and flexible
Withstand higher temperatures

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Chemistry
The gas that is used in the manufacture of vanaspati ghee is :

Hydrogen
Oxygen
Nitrogen
Carbon dioxide

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Chemistry
Gypsum is used for improvement of:

Alkaline soils
Acidic soils
Podsols
Saline soils

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

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

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Chemistry
Glycol is used to manufacture which of the following ?

Artificial silk
Terylene
Nylon
Rubber

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MORE MCQ ON Chemistry

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