Question # 1

Which of the following contains single bonds

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Benzene

Alkyne

Alkene

Alkane

Diversity of organic compounds in millions is:

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Four

Five

Six

Seven

Vital force theory was rejected by

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Berzellius

Kolbe

Wholer

Lavoiser

Cracking normally gives smaller ______

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Alkanes

Alkenes

Alkynes

Both a and b

Which of the following is complex?

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CaSO₄. 0.5H₂O

(C₆H₁₀O₅)_n

C₆H₁₂O₆

CH₄

Catenation is a process in which carbon shows the properties of making

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Multiple bonds

Hybridization

Long chains or rings of carbon atom

Showing isomerism

The general formula for alkenes is

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C_nH_2n+1

C_nH_2n+2

C_nH_2n

C_nH_2n-2

Which of the following pair contains isomers of each other

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Propanoic acid and propanone

Acetone and acetaldehyde

Ethyl alcohol and diethyl ether

Methyl alcohol and dimethyl ether

The open chain compounds are also called

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Aliphatic

Alicylic

Aromatic

Both a and b

Linear shape is associated with set of hybrid orbitals?

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sp

sp2

sp3

dsp2

Alkanes normally have ______ hybridization

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Sp

Sp²

Sp³

d sp³

Organic compounds generally react at ______ rates

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Slow

Fast

Moderate

None of them

Wohler synthesized first of all the organic compound:

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Carbohydrates

Urea

Aniline

Toluene

Which of the following is an aromatic compound

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Propanol

Cyclohexane

Acetone

Benezene

The essential component of organic compound is

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O

C

P

N

The self linking property of carbon is called as

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Linking polymerization

Addition

Catenation

Elimination

Which set of hybrid orbitals has planar triangle shape?

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sp³

sp

sp²

dsp²

The compounds which have any atom other than Carbon atom, in rings are called as

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Monocyclic

Heterocyclic

Homocyclic

None of the above

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called

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Functional isomers

Position isomers

Chain isomers

Metamers

In a heterollytic bond fission reaction

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A molecule of H₂O is formed

A molecule of H₂O is eliminated

A free radical is formed

A positive and a negative ion is formed

Angle 120° is observed in molecules :

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CH₄

CH_3-CH₃

CH -CH

CH_{2 =}CH₂

Type of isomerism in BrCH=CHBr is:

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Structural isomerism

Conformational isomerism

Geometrical isomerism

Positional isomerism

A double bond consists of:

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Two sigma bonds

One sigma and one pi bonds

One sigma and two pi bonds

Two pi bonds

n-butane and iso butane are an example of

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Chain isomerism

Positional isomerism

Meta merism

Functional group isomerism

Which of the following gases is used for illuminating purpose?

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Methane

Ethane

Propane

Butane

The use of tetra ethyl lead in petrol as an efficient antiknock agent is being discouraged. Which reason is correct

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It is costly

It damages the engine

Pb is difficult to obtain in bulk quantities

The combustion product, lead, causes air pollutions

Identify the compound which has a bond angle of 109.5°

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Ethyne

Ethere

Methane

Benzene

In ter-butyl alcohol, the tertiary carbon is bonded to

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Two hydrogen atoms

Three hydrogen atoms

One hydrogen atoms

No hydrogen atom

The chemist who synthesized urea from ammonium cyanate was

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Berzelius

Kolbe

Wholer

Lavoisier

Organic compounds are soluble in all except

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Benzene

Petroleum

Ether

Water

Self linkage of carbon to produce long chains

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isomerism

Polymorphism

Polymerization

Catenation

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ECAT Chemistry Chapter 18 Fundamental Principles of Organic Chemistry Online Test MCQs With Answers

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