Question # 1

Vinyl acetlylene reach with HCl to form

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Polycetylene

Benzene

Chloroprene

Divinylacetylene

Preparation of vegetable ghee involves

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Halogenation

Hydrogenation

Hydroxylation

Dehydrogenation

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

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Ethene

Ethyne

Methane

Propane

Preparation of vegetable ghee involves.

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Halogenation

Hydrogenation

Hydroxylation

Dehydrogenation

Which one is alcylic compound

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Pyridine

Toluene

Ethyl Benzene

Ethylcyclobutane

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

Vinyl chloride when boiled with alcoholic KOH , gives

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Acetylene

Ethylene

Ethene

Ethyl alcohol

Which one of the following gases is used in welding purpose usually

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Methane

Ethane

Ethene

Acetylene

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

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Benzene

Ethane

Ethene

Methane

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

The number of acidic hydrogen present in 1- Propyne is

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1

2

3

4

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

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Hund's rule

Markowikov's rule

Pauli's Exclusion Principle

Aufbau Principle

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

Which alkyne reacts with water and form aldehyde

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Ethyne

Propyne

1- Butyne

2- Butyne

Saturated hydrocarbon are also called.

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Olefins

Acetylenes

Paraffins

Alicyclic

Ethyne on oxidation with strong alkaline KMnO4 changes to

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Ethyl alcohol

Acetaldehyde

Vinyl alcohol

Glyoxal

Synthetic rubber is made by polymerization of

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Vinylaecetate

Acetylene

Divinylacetylene

Chloroprene

Which compound is least reactive

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CH3-CH3

CH2=CH2

CH=CH

C6H6

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

Vinyl acetylene combines with HCl to form

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Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

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

When ethyl alcohol is heated with conc. H2SO4 it produces ethene. The temperature required is as proximately

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100 ^oC

78 ^oC

Above 200 ^oC

140- 170 ^oC

A gas decolorizes alkaline KMnO4 but has no action with ammoniacal AgNO3, this gas may be

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C2H2

C2H4

C2H6

CH4

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