Question # 1

Which of the following is electrophile for alkylation?

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NO+2

SO3

R+

Both a & b

Addition of unsymmetrical reagent to an unsymmetrical alkene is governed by

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Cannizzaro's Reaction

Aldol Condensation

Kirchhoff Rule

Markownikov's Rule

A compound that has a nucleophilic carbon?

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C2H2

C2H4

C3H8

C6H6

2,5-dimethyl-1-hexene has

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Two sp2 hybridized carbons

Six sp2 hybrid carbons

Two double bonds

Four pi electrons

2-Propenol, on rearrangement, yields

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Propanal

Propanone

2-propano

Both A and B

Aniline is the derivative of the benzene containing the

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Hydroxyl group

Amino group

Amido group

Imido group

Ethene is produced from ethyl chloride by reacting with alcoholic KOH. The process is called

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Hydrogenation

Dehydrogenation

Dehydrohalogenation

Oxidation

Active sulphonating agent during sulphonation of benzene is

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SO2

SO3

SO3H

SO3+

Acetylide can give back ethyne upon treatment with

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water

strong base

dil. Acid

weak base

Substituted phenyl group are called

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Arene groups

Alkyl groups

Aryl groups

Acyl groups

Which one of the following is a powerful electrophile used to attack on the electrons of benzene ring?

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FeCl2

Cl+

FeCl-4

Cl2

Which of the following is not an electrophilic substitutional reaction of benzene?

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Free radical chlorination of benzene

Friedel Craft alkylation

Sulphonation

Nitration

When 1-butene reacts with bromine, the product formed will be

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1, 3-dihydroxy butane

But-1, 2-diol

1, 3-dihydroxy butan-diol

1,2-dibromo butane

Baever's reagent is misture of

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HCI& ZnCl

Ageous bromine

Alkaline KMn4

Mix of Br2&KMnO4

Naphthalene has two fused aromatic ring of carbon atom the molecular formula

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C10H8

C10H14

C10H10

C12H12

Dehydrohalogenation of alkyl halides happens in the presence of

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Pd

Ni

Zn

KOH/alcohol

The reaction of alkyl halide in the presence of alcoholic KOH is

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Substitution

Addition

Acid-base

Elimination

Ethylene polymerizes at 100 atm pressure and 400 °C to give

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Polybenzene

Polypropylene

Polyalcohol

Polyethylene

The angle between the unhybridized 2pz orbital and the three sp2 hybrid orbitals in ethene is

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180°

120°

90°

60°

Ethane when completely halogenated in excess of chiorine can form

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Hexachloroethane

Dichloroethane

Pentachloroethane

1.1.2.2-terachloroethane

Among the following the polycyclic aromatic compound is

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Styrene

Naphthalene

Toluene

Acetophenone

Glyoxal molecule has?

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two carbonyl groups

One aldehydic and one carbonyl group

Two aldehydic groups

Two carboxyl group

During the nitration of benzene the nitrating agent is

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NO3

NO2+

NO2-

HNO3

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