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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
Most poisonous pollutant in water is

Zinc
Arsenic
Detergent
Phosphate

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Chemistry
The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are

Sodium Chloride
Dry ice or frozen carbon dioxide
All listed here
Silver Iodide

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Chemistry
How many neutrons does iron have

26
8
13
30

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Chemistry
Which of the following is the best fuel in terms of energy released per gram of fuel?

Butane
Methane
Ethanol
Hydrogen

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Chemistry
Which is a natural colloid ?

Blood
Sodium chloride
Urea
Cane-sugar

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MORE MCQ ON Chemistry

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