Question # 1

Dehydration of alcohols can be carried out with.

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NaOH

KOH

H₂SO₄

HCl

Amont the followign substitution reaction is characteristics of.

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Alkanes

Alkenes

Alkynes

None of these

The reduction of alkyl halides takes place in the presence of.

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Zn/HCl

Na/HCl

Mg/HCl

Cu/HCl

Dehydration means removal of.

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Water

Halogen

Hydrogen

All above.

Incomplete combustion of alkanes produce.

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Carbon dixoide only

Carbon monoxide only

Carbon monoxide carbon black and water

Carbon dioxide and carbon black

Which of following dehydration of alcohols take place:

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NaOH

KOH

H₂SO₄

HCl

Which gas creates suffocation and causes death?

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CO

CO₂

SO₃

SO₂

Condensed formula of ethane is

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C₃Cl₈

C₂Cl₆

H₃CCH₃

None of these

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 one of these is a saturated hydrocarbon?

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C₂H₄

C₃H₆

C₄H₈

C₅H₁₂

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

Which is simplest alkane?

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CH₄

C₂H₈

C₂H₂

C₂H₄

Hydrogenation of alkenes and alkynes takes place at room temperature in the presence of.

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Ni

Pt

Pd

Both a and b

The reduction of alkyl halides takes place in the presence of

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Zn/HCl

Na/HCl

Mg/HCl

Cu/HCl

Which compound do not produce in the halogenation of methane.

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Chloroform

Carbon tetrachloride

Carbon black

Chloromethane

Which hydrocarbon decolorizes the pink colour of acidic solution of potassium permanganate?

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CH₄

C₂H₄

C₂H₆

C₂H₅

Marsh gas is mostly consisted of.

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Butane

Propane

Ethane

Methane

Which one of these is used as anaesthesia?

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carbon black

Mehtane

Ethane

Chloroform

The alkanes consisting of C₅ to C₁₀

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gases

liquids

solid

plasma

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