Question # 1

Which of the following statement s is not true about fossil fuels?

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they all contain carbon

They are renewable

they produce pollutants when burnt

they cause acid rain

The ability of carbon atoms to form chains or ring called.

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Hydrogenation

Chlorination

Cantenation

Halogenation

Coal having 90% carbon contents is called.

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Peat

Lignite

anthracite

bituminous

What is the percentage of carbon in anthracite?

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60%

70%

80%

90%

The coal in which the percentage of carbon is 60%

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Peat

Lignite

Bituminous

Anthracit

The example of heterocyclic compound is.

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Benzene

Hexane

Cyclohexane

Pyridine

Natural gas contains.

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Methane

Ethane

Propane

All

Coal is blackish complex mixture of compounds of

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Carbon

Hydrogen

oxygen

All

Wood contain the amount of carbon.

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70%

80%

60%

40%

Formula of Methyl alcohol

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CH₅-OH

CH₃-CH₂-OH

All of them

None of these

Petroleum is refined by

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Destructive distillation

Fractional distillation

Simple distillations

Dry distillation

Main component of natural gas is

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Methane

Propane

Butane

Propene

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

In which of the following groups , oxygen is attached on both sides with carbon atoms.

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Ketone group

Ether group

Aldehyde group

Easter group

Number of discovered element till today are.

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140

118

90

16

Main component of natural gas is

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Methane

propane

Butane

Propene

The 1st organic compound prepared in laboratory.

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Urea

NaCl

Thiourea

Pyridine

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