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Chemistry

Chemistry
Who modified Bohr's theory by introducing elliptical orbits for electron path

Hund
Sommerfeld
Thomson
Rutherford

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Chemistry
Which one among the following is not a mixture?

Glass
Graphite
Brass
Steel

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Chemistry
The chief source for the production of nitrogeneous fertilizers is :

Nitrogen dioxide
Nitric acid
Ammonia
Nitrogen

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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
What is the atomic number of mercury

63
32
80
41

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Chemistry
This group of alumino-silicate minerals is widely used in making electrical insulators

Bauxite
Manganese
Chromite
Mica

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MORE MCQ ON Chemistry

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