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Chemistry

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

Rutherford
Thomson
Sommerfeld
Hund

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Chemistry
‘Aerosol’ is known as

Pollutant gas, present in air
Microbes, present in air
Suspended solid particles in air
Green house gas present in air

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Chemistry
The major constituent of air is

nitrogen
hydrogen
carbon dioxide
oxygen

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Chemistry
The deterioration of a metal by an electrochemical process is commonly termed as

Corrosion
Passivation
Abrasion
Erosion

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Chemistry
The molecule which has the highest percentage of ionic character among the following is

HF
HI
HCI
HBr

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Chemistry
The smog is essentially caused by the presence of

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

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