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Chemistry

Chemistry
The most abundant rare gas in the atmosphere is

He
Ar
Xe
Ne

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Chemistry
Chile saltpeter is the common name of:

Sodium nitrite
Sodium nitrate
Potassium nitrate
Potassium nitrite

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Chemistry
Preparation of ‘Dalda or Vanaspati’ ghee from vegetable oil utilizes the following process :

Ozonolysis
Oxidation
Hydrolysis
Hydrogenation

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

Hund
Thomson
Sommerfeld
Rutherford

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Chemistry
Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water

Magnesium
None of these
Manganese
Calcium

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Chemistry
A subshell with l=2 can take up

5 electron
10 electron
3 electron
8 electron

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MORE MCQ ON Chemistry

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