Question # 1

Write the name of following alkene CH₂= CH - CH = CH₂

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1,3 butadiene

Butra -1, 3-diene

Both a & b

None

Which is symmetric alkene?

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CH=C-CH₂

CH≡CH

CH₃-C≡C - CH₃

B and C

Most common reactions of benzene and its derivatives are

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electrophilic addition reactions

electrophilic substitution reactions

Nucleophilic addition reactions

Nucleophilic subtitution reactions

Which of the following is an ortho-para directing group

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Sulphuric acid generates nitronium ion by reacting with

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Nitric acid

Nitrogen gas

Nitrous acid

Potassium nitrate

When alkyl is treated with chlorine in the presence of sunlight

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1,3 dichloroproduct is formed

1,4 dichloro product is formed

1,3,5 trichloro product is formed

Only alkyl group is substituted

β-β- dichloroethyle sulphide is commonly known as:

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Mustared gas

Laughing gas

Phosgene gas

Bio gas

"Each different compound should have a different name" was published by IUPAC system of nomenclature in

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1892

1830

1947

1979

Kolb's method is not useful for the production of

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Methane

Ethane

Propane

Butane

Complete combustion of alkane yields

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CO₂+ H₂O

CO₂+ heat

CO + H₂O heat

CO₂+ H₂O + heat

Polymerization of ethane take place at pressure of 100 atm and a temperature of

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200°C

400°C

600°C

800°C

The term aromatic was derives from

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Greek word

Latin

Russian

English

The general formula of alkane is

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C_nH_2n+2

C_nH_n

C_nH_2n

C₂H_2n-1

A salt producing hydrocarbon among these compounds is

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Ehyne

Ethene

Methane

Ethane

Which of the following substances is used as an antiknock compound?

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Tetraethyl lead

Lead tetrachloride

Lead acetate

Ethyle acetate

Which can be used for dehydration of alcohol

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P₄O₁₀

H₂SO₄

H₃PO₄

All of them

What is not a common use of methane

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As a fuel

For the preparation of haloaklanes

For the preparation of methyl alcohol

For the preparation of sulphuric acid

Synthetic rubber is made by polymerization of

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Chloroform

Acetylene

Divinlacetylene

Butene

The hydrocarbon which is used as an illuminating agent

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Methane

Methene

Methyne

B & C

Alkanes have functional group :

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----X

--OH

----COH

No functional group

The major reaction occurring in the engines of automobiles is

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Oxidation

Reducing

Combustion

Decomposition

the unreactivity of alkanes is based upon

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Inertness of sigma bond

Non-polarity of the bonds

Both A and B

None of above

The compound prepared by a substitution reaction of benzene is

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Acetophenone

Glyoxal

Cyclohexame

Hexabromo cyclohexane

The treatment of benzene with isobutene in the presence of sulphuric acid give

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isobutyl benzene

tert-Butyl benzene

n- Butyl benzene

no reaction

Catalytic oxidation of alkanes is used for the preparation of

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Adehydes

Fatty acid

Carbonyylic acids

Ketones

Which of the following is not aromatic hydrogencarbon

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Benzene

Naphthalene

Toluene

Cyclohexene

Benzene does not undergo

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Substitution reaction

Addition reaction

Oxidation reaction

Elimination reaction

Marsh gas was the name given to

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Methane

Ethane

Propane

Butane

In which one of the following compound rings are not fused together at ortho positions

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Phenanthrene

Naphthalene

Diphenyemethane

Anthracene

Alkenes combine readily with electrophillic reagents such as halogens giving

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Haloalkanes

Gem-dihalides

Vicinal dihalides

Vinyl halides

Raney - nickel is the alloy of Ni with

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Pt

Al

Cu

Pd

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ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons Online Test MCQs With Answers

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