Question # 1

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

In t-butyl alcohol, the tertiary carbon is bonded to:

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Two hydrogen atom

Three hydrogen atoms

One hydrogen atoms

No hydrogen atoms

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3

4

5

2

Geographical survey of Pakistan estimates about billion tons of coal in Pakistan:

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182

183

184

185

Products of coal is:

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Peat

Lignite

Bituminous coal

All above

Cracking done at low pressure and with a catalyst is called _______ cracking

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Thermal

Catalytic

Steam

None of them

The gasoline having octane No. 100 has ______

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More knocking

Less knocking

No knocking

Only knocking

General formula of carbocyclic acids is:

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RCOH

RCOR

RCOOR

R-OH

Normal by product of cracking is

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Ethane

Butane

Benzene

All of them

The fractions obtained from fractional distillation of petroleum are placed in increasing order of their boiling points. Which order is correct

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Natural gas, petroleum ether, gasoline kerosene

Petroleum ether, kerosene, natural gas, petroleum ether

Gasoline, kerosene, natural gas, petroleum ether

Kerosene, gasoline, petroleum ether, natural gas

Organic compounds resemble to those of inorganic compounds having same

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Ionic properties

Carbon forming long chain or rings

Chemical forces

Isomerism

Which structure shows a primary alcohol

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Self linkage of carbon to produce long chains

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isomerism

Polymorphism

Polymerization

Catenation

The rotation of two carbon atoms joined by double bond would happened only if

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Pi bond is broken

Sigma bond is broken

Both bonds are broken

None of above

Which of the following gases is used for illuminating purpose?

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Methane

Ethane

Propane

Butane

Carboxylic acid, ester, amide and amino groups are shown. Which is the correct description of these functional groups

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Which reaction produces a free radical

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SN reaction

Homelytic fission reaction

Heterolytic fission reaction

Addition reaction

Which of the following is not a hydrocarbon

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Butane

Methyl benezene

Acetylene

Glucose

The open chain compounds are also called

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Aliphatic

Alicylic

Aromatic

Both a and b

Wohler synthesized first of all the organic compound:

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Carbohydrates

Urea

Aniline

Toluene

The branch of chemistry which deals with the study of compounds containing carbon as an essential elements is called

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Physical

Inorganic

Nuclear

Organic

The state of hybridization of carbon atom in methane is

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sp³

sp²

sp

dsp²

The process in which orbitals of different energies and shapes mix up with each other to give equivalent is called,

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Hybridization

Polymerization

Isomerisation

Carbonization

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0

1

2

3

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

The chemist who synthesized urea from ammonium cyanate was

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Berzelius

Kolbe

Wholer

Lavoisier

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

Coal is used to bake bricks in lime kiln:

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40%

60%

80%

None of these

The characteristic reactions of alkanes are

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Addition reactions

Substitution reactions

Condensation reactions

Polymerization reactions

Linear shape is associated with which set of hybrid orbitals

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sp

sp²

sp³

dsp²

Cracking normally gives smaller ______

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Alkanes

Alkenes

Alkynes

Both a and b

More Classes

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

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