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Chemistry

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

Sommerfeld
Rutherford
Thomson
Hund

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Chemistry
Limestone is a raw material used by which industry?

Cement
Fertilizers
Petrochemicals
Aluminium

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Chemistry
Which of the following is used in making smoke bombs?

Hydrogen
Sulphur
Phosphorus
Carbon

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Chemistry
The most common cause of pollution of air is

Carbon monoxide
Carbon dioxide
Sulphur dioxide
Smoke

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Chemistry
Mercury is a :

Solid metal
Liquid non-metal
Liquid metal
Solid non-metal

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Chemistry
What is the chemical symbol of mercury

Hg
None of these
Mr
Mg

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MORE MCQ ON Chemistry

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