Question # 1

Which one of the following gases is prepared by heating a mixture of sodium acetate and sodium hydrozide.

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CH4

CH2-CH3

CO2

CO

Vinyl chloride when boiled with alcoholic KOH , gives

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Acetylene

Ethylene

Ethene

Ethyl alcohol

The general formula for Alkanes is

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C_nH_2n+1

C_nH_2n

C_nH_2n-2

C_nH_2n+2

Formula of choloroform is

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CH₃Cl

CCl₄

CH₂Cl₂

CHCI₃

Which one of the following compounds will decolorized both acidified KMnO4 and aqueous bromine.

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Benzene

Ethane

Ethene

Methane

Which one of the following is formed when ethyne is heated in copper tube at 300 ^oC

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Ethene

Ethane

Benzene

Cyclohexane

Saturated hydrocarbon are also called.

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Olefins

Acetylenes

Paraffins

Alicyclic

Synthetic rubber is made by polymerization of.

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Chloroform

Acetylene

Divinylactylene

Chloroprene

Which gas is used for artificial ripening of fruits

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Ethene

Metheane

Propane

Ethyne

An aldehyde is reduced to alkane with hydrazine is the presence of

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KOH

NaOH

CaO and NaOH

Ca(OH)2

Which one of the following gases is used for artificial ripening of fruits

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Ethene

Ethyne

Methane

Propane

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule

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Hund's rule

Markownikov's rule

Pauli's Exclusion Principle

Aufbau Principle

The general formula for Alkene having one double bond is

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C_nH_2n+1

C_nH_2n

C_nH_2n-2

C_nH_2n+2

When methane reacts with Cl2 is commonly known as

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Mustard gas

Laughing gas

Phosgene gas

Bio gas

Which one of the following can best be used to distinguish between samples of ethane and ethene

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Aqueous BaCl2

Aqueous bromine

Lime water

Litmus solution

The catalytic oxidation of methane produces

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CO + H₂O

CO₂+ H₂O

C₂+ H₂O

H₃C - OH

Which alkyne reacts with water and form aldehyde

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Ethyne

Propyne

1- Butyne

2- Butyne

Which one of the following compounds will form red precipitate with ammoniacal cuprous chloride

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Acetylene

Ethylene

Benzene

Methane

Vinyl acetylene combines with HCl to form

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Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

Which one of the following gases is used welding purpose usualy.

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Methane

Ethane

Ethene

Acetylene

When methane reacts with Cl₂in the presence of diffused light the products obtained are

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Chloroform only

Carbon tetrachloride only

Chloromethane and dichloromethane

Mixture of a, b, c

Which substance is formed by the catalytic oxidation of methane at 100 ^oC, 200 atmospheric pressure and copper catalyst

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Methanol

Methanal

Methanoic acid

All of these

Which one of the followings is major product when HBr reacts with 2-butene

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2- bromobutane

1- bromobutane

1-1 di bromobutane

1,2 di bromobutane

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