Question # 1

Which of the following has linear shape?

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SP

SP²

SP³

None of the above

Rates of organic reactions are

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Fast

Very fast

Slow

Non-reactive

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

Identify the heterocyclic compound

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Toluene

Pyridine

Butanoic acid

Propenol

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 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 major components of coal gas are

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Hydrogen and methane

Ethane and carbon monoxide

Nitrogen and ethane

Ethane and carbon dioxide

Which structure shows a primary alcohol

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The open chain compounds are also called

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Aliphatic

Alicylic

Aromatic

Both a and b

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

Functional group of ketones is:

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---CHO

---CO---

---C≡ N

---COOH

The gasoline with high octane No. has ______

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More knocking

Less knocking

No knocking

Only knocking

Which of the following is an electrophile

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Bromine

KBr

NH₃

Benzene

The active part in a molecule is called

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Hetroatom

Functional group

Chemical bond

Ion

Identify the hydrocarbon formed, when ethyl bromide reacts with, alcoholic KOH at 100°

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Methane

Ethane

Ethene

Ethyne

Which is the chain isomer of n-pentane

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Isopentane

Neopentene

N-pentene

Isopentene

The open chain compounds are also called

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Aliphatic

Alicylic

Aromatic

Both a and b

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1, 5-pentadiene

Penta-1, 4-diene

1, 1-pentadiene

1, 4-pentene

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

Which of the following contains single bonds

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Benzene

Alkyne

Alkene

Alkane

Peat before conversion to bituminous coal is converted to

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Lignite

Anthracite

Asphalt

None

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1

2

3

4

Select from the following the one which alcohol

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2, 2, 4-trimethylpentane

2, 4, 4-trimethylpentane

2, 4, 4-methyepentane

2, 2, 4-methylpentane

The structure of benzene is

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Hexagonal

Pyramidal

Square planer

Tetrahedral

Due to the bacterial action on wood it is converted into

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Peat

Lignite

Bituminous coal

Anthracite

Replacement of hydrogen atom by - SO₃H group in benzene is called

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Nitration

Alkylation

Sulphonation

Acylation

Which of the following gases is used for illuminating purpose?

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Methane

Ethane

Propane

Butane

General formula of carbocyclic acids is:

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RCOH

RCOR

RCOOR

R-OH

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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Condensation

Dehydration

Dehydrogenation

Hydrogenation

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