Question # 1

Vinyl acetylene combines with HCl to form

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Polyacetylene

Benzene

Chloroprene

Divinyl acetylene

In which reactions alkane is not produced

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Subatier's and Sendern reaction

Koibe's reaction

Wolf -Kishner's reduction

Dow's process

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

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Methane

Ethane

Ethene

Acetylene

Synthetic rubber is made by polymerization of.

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Chloroform

Acetylene

Divinylactylene

Chloroprene

What type of reaction occurs between ethene and hydrogen.

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Addition

Substitution

Oxidation

Dehydration

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 is formed when ethyne is heated in copper tube at 300 ^oC

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Ethene

Ethane

Benzene

Cyclohexane

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

Which one is used for manufacture of fertilizers

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Methane

Ethane

Ethene

Ethyne

The catalytic oxidation of methane produces

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CO + H₂O

CO₂+ H₂O

C₂+ H₂O

H₃C - OH

Acetylene reacts with ammoniacal cuprous chloride a red ppt is formed. This red ppt is of

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Copper chlorite

Coper chlorate

Cupric oxide

Copper acetylide

Formula of chloroform is

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CH₃Cl

CCl₄

CH₂Cl₂

CHCl₃

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

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Acetylene

Ethylene

Benzene

Methane

The number of acidic hydrogen present in 1- Propyne is

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1

2

3

4

Which one is alcylic compound

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Pyridine

Toluene

Ethyl Benzene

Ethylcyclobutane

Which compound is the most reactive

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Benzene

Ethene

Ethane

Ethyne

Which alkyne reacts with water and form aldehyde

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Ethyne

Propyne

1- Butyne

2- Butyne

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

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