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Chemistry

Chemistry
Which among the following coal contains 90 per cent of carbon?

Anthracite
Peat
Lignite
Bitumen

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Chemistry
What are the number of moles of CO2 which contains 16 g of oxygen?

0.5 mole
0.2 mole
0.25 mole
0.4 mole

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Chemistry
The reaction intermediate formed during the preparation of diethylether from ethanol by treatment with H2SO4 is

Carbanion
Free radical
Carbocation
Carbene

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Chemistry
Which one element has the highest electronegativity value

Fluorine
Chlorine
Nitrogen
Lithium

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Chemistry
Which one of the following forms of phosphorus is most reactive?

Red phosphorus
Violet phosphorus
Black phosphorus
White phosphorus

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Chemistry
Among the fuels given below, the one with highest calorific value is

Wood
Coke
Natural gas
Coal

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MORE MCQ ON Chemistry

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