ECAT Pre Engineering Chemistry Chapter 19 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

Try The MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

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ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

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Question # 1

Octane number can be changed by

Question # 2

The electrophile in aromatic sulphonation is

Question # 3

When methane reacts with Cl2in the presence of diffused light the products obtained are?

Question # 4

Alkanes are least reactive towards:

Question # 5

Alkanes containing carbon C18ownwards are

Question # 6

Reaction of ethanes with KMnO4 gives:

Question # 7

The order of reactivity of halogens in aliphatic substitution reactions is

Question # 8

The general formula of alkane is

Question # 9

Th IUPAC name of the compound having formula (CH3) 3 C - CH = CH2 is

Question # 10

Which reaction is too vigorous to control

Question # 11

Which one does not declourized KMnO4

Question # 12

Which is liquid among the following alkenes?

Question # 13

Which is the used as test for the presence of alkenes

Question # 14

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Question # 15

Alkyne is :

Question # 16

Benzene is obtained from benzene sulphonic acid by treating with

Question # 17

Which of the following acid can be used as a catalyst in Friedal Craft's reactions

Question # 18

Ethylene combines with water in the presence of H2SO4+ HgSO4and forms

Question # 19

The method in which alkanes prepared by alkyle halides in the presence of palladium - charcoal is

Question # 20

Alkyl halides when reduced with nascent hydrogen in the presence of Zn + HCI, are converted to

Question # 21

During reaction of O2and alkenes, a product:

Question # 22

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

Question # 23

Which one of the following gases is used for artificial ripening of fruits ?

Question # 24

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with

Question # 25

During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be

Question # 26

Kolb's method is not useful for the production of

Question # 27

When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product

Question # 28

Kolb's method has limited synthetic applications due to

Question # 29

Which is more active ?

Question # 30

Synthetic rubber is made by polymerization of

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 β-β- dichloroethyle sulphide is commonly known as:
A. Mustared gas
B. Laughing gas
C. Phosgene gas
D. Bio gas
2 The next homologue of C10H22will be
A. C9H20
B. C12H26
C. C11H24
D. C13H28
3 Alkyne is :
A. CH3-CH3
B. CH4
C. CH2=CH2
D. C2H2
4 The presence of a double bond in a compound in the sign of:
A. Saturation
B. Unsaturation
C. Subsitution
D. None
5 Vinyl acetylene combines with HCl to form:
A. Polyacetylene
B. Benzene
C. Chloroprene
D. Divinyl acetylene
6 Benzene is obtained from benzene sulphonic acid by treating with
A. HCl
B. NaOH
C. H2O
D. NaHCO3
7 Amongst the following the compound that can be most readily sulphonated is
A. Toluene
B. Benzene
C. Nitrobenzene
D. Chlorobenzene
8 Zn + HCI are used in
A. Clemenson reduction
B. Wof kishner reduction
C. Kolb's electrolysis
D. Wutruz reaction
9 Hybridization of each carbon atom in benzene ring is
A. sp hybridized
B. sp2hybridized
C. sp3
D. dsp2
10 During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be
A. H2SO4
B. Ni
C. Fe2O3
D. Al2O3

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