Question # 1

Unsaturated hydrocarbon containing a double bond are called

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paraffin

Alkanes

Olefins

Acetylene

Homologues differ from each other by an integral number of

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CH₂groups

CH₃groups

CH groups

CH₄groups

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0

1

2

3

A double bond consists of

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Two sigma bonds

One sigma and one Pi bond

One sigma and two Pi bonds

Two Pi bonds

Which of the following is a product of destructive distillation of coal

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Ammonia

Coke

Cyanides

Kerosene

The essential component of organic compound is

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O

C

P

N

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3

4

5

2

Coal is used to bake bricks in lime kiln:

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40%

60%

80%

None of these

Hybridzation explain the --------- of orbitals

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Type of bonding

Shapes

Shape and type of bonding

None of above

Angle 120° is observed in molecules :

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CH₄

CH_3-CH₃

CH -CH

CH_{2 =}CH₂

Wohler synthesized first of all the organic compound:

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Carbohydrates

Urea

Aniline

Toluene

The self linking property of carbon is called as

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Linking polymerization

Addition

Catenation

Elimination

A nuclophile must

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Be an atom

A group of atoms

Have a lone pair

Be negatively charged

The bond angle between hydrogen atoms and carbon in alkane is

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104.5°

107.5°

109.5°

120.5°

The gasoline with high octane No. has ______

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More knocking

Less knocking

No knocking

Only knocking

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1

2

3

4

Which is the chain isomer of n-pentane

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Isopentane

Neopentene

N-pentene

Isopentene

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

Select from the following which one is alcohol?

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CH₃-CH₂-OH

CH₃-O-CH₃

CH₃COOH

CH₂-CH₂-BR

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

Which of the following is complex?

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CaSO₄. 0.5H₂O

(C₆H₁₀O₅)_n

C₆H₁₂O₆

CH₄

Alkanes normally have ______ hybridization

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Sp

Sp²

Sp³

d sp³

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

Types of cracking are:

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Thermal

Catalytic

Steam

All a, b ,c

Ether shows the phenomenon of

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position isomerism

Chain isomerism

Metamerism

Cir-trans isomerism

Wohler succeeded in obtaining, urea from

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Cyanogen

Ammonium cyanate

Ammonium hydroxide

None of these

The general formula of saturated alicyclic hydrocarbons is:

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C_nH_n

C_nH_2n

C_nH_2n+2

C_nH_2n-1

Those compound which have any atom other than C as member of rings are called as

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Monocyclic

Hetrocyclic

Aliphatic

Both a and b

Acetylene had a characteristic ethereal smell resembling that of

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Ginger

Vinegar

Garlic

Onion

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