Question # 1

Which of the following is an aromatic compound

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Propanol

Cyclohexane

Acetone

Benezene

The percentage of methane in natural gas is

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50%

60%

85%

90%

A free radical reaction takes place in three steps, initiation, propagation and terminations. Which of the following expression represents a propagation step

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The process in which one s and two p orbitals mix up with each other is called

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Sp-hybridization

Sp²-hybridization

Sp³-hybridization

Dsp²-hybridization

Functional group of ketones is:

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---CHO

---CO---

---C≡ N

---COOH

Which of the following is an electrophile

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Bromine

KBr

NH₃

Benzene

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

Identify the heterocyclic compound

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Toluene

Pyridine

Butanoic acid

Propenol

Which of the following is not a hydrocarbon

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Butane

Methyl benezene

Acetylene

Glucose

The atom other than C in a hetrocyclic compound is called as

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Hetroatom

Hetroion

Hetromolecule

Hetroelement

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0

1

2

3

When a compound X is passed through a dilute alkaline solution of KMnO₄the pink colour of solution is discharged. The compound X is possbibly

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Methane

Ethane

Ethene

Benzene

Organic compounds are soluble in all except

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Benzene

Petroleum

Ether

Water

Linear shape is associated with which set of hybrid orbitals

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sp

sp²

sp³

dsp²

Which is not a fossil fuel

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Petroleum

Coal

Natural gas

None of them

Linear shape is associated with set of hybrid orbitals?

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sp

sp2

sp3

dsp2

n-butane and iso butane are an example of

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Chain isomerism

Positional isomerism

Meta merism

Functional group isomerism

In alkynes the bonds between carbon atoms are

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All sigma bonds

All pi(π) bonds

One is sigma and two areπ(pi) bonds

One isπ(pi) and two are sigma bonds

The self linking property of carbon is called as

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Linking polymerization

Addition

Catenation

Elimination

Organic compounds generally react at ______ rates

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Slow

Fast

Moderate

None of them

Who rejected the vital force theory

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Wholer

Fisher

Newton

Lewis

The state of hybridization of carbon atom in methane is:

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sp³

sp²

sp

dsp²

On passing ethane into concentrated suphuric acid the intermediate compound formed on hydrolysis with boiling water gives

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Methyl alcohol

Ethyl alcohol

Ethyl hydrogen sulphate

Methyl hydrogen sulphate

Peat before conversion to bituminous coal is converted to

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Lignite

Anthracite

Asphalt

None

Normal by product of cracking is

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Ethane

Butane

Benzene

All of them

Select from the following the one which alcohol

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General formula of carbocyclic acids is:

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RCOH

RCOR

RCOOR

R-OH

The open chain compounds are also called

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Aliphatic

Alicylic

Aromatic

Both a and b

Alkanes normally have ______ hybridization

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Sp

Sp²

Sp³

d sp³

Due to the bacterial action on wood it is converted into

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Peat

Lignite

Bituminous coal

Anthracite

Wohler succeeded in obtaining, urea from

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Cyanogen

Ammonium cyanate

Ammonium hydroxide

None of these

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