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Chemistry

Chemistry
The highest volume of gases in lower atmosphere is comprised of

Hydrogen
Carbon dioxide
Oxygen
Nitrogen

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Chemistry
The chemical name of 'Plaster of Paris' commonly used for setting broken bones is

Calcium nitrate
Calcium sulphate
Calcium carbonate
Calcium chloride

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Chemistry
The value of gas constant R in Ergs deg–1 mole–1 is

8.314 × 107
8.413 × 107
8.341 × 107
4.183 × 107

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Chemistry
The advantage of detergents over soaps is

Detergents could not give much lather
Detergents are soluble in water
Soaps give lather with only soft water
Detergents give lather even with hard water

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Chemistry
How many electrons can be accommodated in d-orbital

8
10
6
3

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Chemistry
One carat of diamond is equal to

250 mg
150 mg
100 mg
200 mg

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MORE MCQ ON Chemistry

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