Question # 1

Which one contains triple covalent bond?

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Pentane

Ethylene

Acetylene

All

Carbon content in coke is.

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80%

98%

70%

88%

The % age of carbon is coal is

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40-60

50-70

40-80

40-90

Molecular formula of butane is

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C₄H₈

C₄H₁₀

C₄H₁₂

C₄H₆

Main component of natural gas is

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Methane

Propane

Butane

Propene

Vital force theory was rejected by.

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Jabir Bin Hayan

Drawin

Wohler

Berzellius

The strong heating of coal in the absence of air called.

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Fractional Distilation

Destructive Distiation

Carbonization

Catenation

Pitch is black residue of.

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Coke

Coal tar

Coal

Coal gas

The ability of carbon atom to form chain is called.

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Isomerism

Catenation

resonance

Condensation

Conversion of wood into coal is called.

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Carbonization

Destructive distillation

Fractional distillation

All

Natural gas contains.

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Methane

Ethane

Propane

All

Coal tar contains compounds

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Benzene

Phenol

Toluene

All

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Alkanes are also called:

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olefins

Paraffins

aliphatic compound

cyclic compounds

Formula of Methyl alcohol

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CH₅-OH

CH₃-CH₂-OH

All of them

None of these

The functional group -COOH is found in.

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Aldehydes

Esters

Carboxylic acids

alcohols

Natural gas is 85% methane, It is used to make the follwing except.

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Carbon black

Ethane

Propane

Both b and c

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