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Chemistry

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

Thomson
Hund
Rutherford
Sommerfeld

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Chemistry
Saccharin is made up of

Propane
Toluene
Butane
Phenol

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Chemistry
The anode in a dry cell consists of

Cadmium
Zinc
Graphite
Copper

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Chemistry
Molality of pure water is

1.8
5.55
18
55.5

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

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

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Chemistry
The length of double bond is _______ than single bond

Shorter
None of these
Of same lenght
Longer

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