Question # 1

By which process alkenes are prepared from alcohols:

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Dehelogenation

Dehydrogenation

Dehydration

Dehydro-halogenation

Alkanes give reaction only

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Addition

Decomposition

Substitution

Displacement

Which compound do not produce in the halogenation of methane.

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Chloroform

Carbon tetrachloride

Carbon black

Chloromethane

Dehydration of alcohols can be carried out with.

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NaOH

KOH

H₂SO₄

HCl

Hydrogenation of vegetable oil to convert it into banaspatic ghee is carried out in the presence of catalyst:

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Ni-metal

Zn-metal

Na - Metal

Fe2O3

Carbon Tetra chloride is used in .

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Fertilizer

Dry cleaning

Metallurgy

Anesthesia

The molecular formula of the first three members of the alkane hydrocarbons are CH_4,C₂H₆ and C₃H₈. What is the molecular formula for the eight alkane member, octane, which is found is petrol?

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C₈H₈

C₈H₁₆

C₈H₁₈

C₈H₂₀

Alkanes are least reactive compounds because they are.

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Saturated hydrocarbons.

Unsaturated hydrocarbons.

Both a and b

None of the above.

Which gas in produced during ripening of bnabanas.

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Methane

Ethene

Acetylene

Carbon dioxide

The process which convert vegetable oil into banaspati ghee called.

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Hydrogenation

Halogenation

a and b

None of these

Which is simplest alkane?

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CH₄

C₂H₈

C₂H₂

C₂H₄

Which is present 85% in natural gas?

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Ethane

Propane

Methane

Butane

Oxidation of Ethene with KMnO₄ produces.

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Oxalic acid

Glyoxal

Ethene Glycol

Propene glycol

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