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

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

Question # 2

Preparation of vegetable ghee involves:

Question # 3

Amongst the following the compound that can be most readily sulphonated is

Question # 4

Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called

Question # 5

The sp2hybird orbitals are oriented in space at one angle

Question # 6

Which of the following reaction is characteristic of benzene

Question # 7

The order of reactivity of halogen acids towards alkenes

Question # 8

The hydrocarbons having double bonds normally end with suffix

Question # 9

Preparation of vegetable ghee involves

Question # 10

An organic compound, on treatment with Br2 in CC14 gives bromoderivative of an alkene. The compound will be

Question # 11

Which of the following is not an ortho-para directing group

Question # 12

The order of dehydration of alcohol

Question # 13

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

Question # 14

Benzene does not undergo

Question # 15

Incomplete oxidation of alkanes yields

Question # 16

Substitution of halogen in the benzene ring requires catalyst

Question # 17

In which one of the following compound rings are not fused together at ortho positions

Question # 18

Physical properties of alkanes increase with increase of all physical constants except

Question # 19

The presence of a double bond in a compound in the sign of:

Question # 20

the unreactivity of alkanes is based upon

Question # 21

Which gas is produced by treating CaC2with water

Question # 22

Which of the following species participate in sulphonation of benzene ring?

Question # 23

Octane number is zero for

Question # 24

For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to

Question # 25

Mustard gas is a

Question # 26

Hydrocarbons contain :

Question # 27

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

Question # 28

Preparation of vegetable ghee involves

Question # 29

The reaction-method that does not give an alkane is

Question # 30

Which is liquid among the following alkenes?

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Boiling point of n-butane is:
A. -102°C
B. -75°C
C. -55°C
D. 55°C
2 Preparation of vegetable ghee involves:
A. Halogenation
B. Hydrogenation
C. Hydroxylation
D. Dehydrogenation
3 The reaction in which ketone is reduced to the alkane is called
A. Kolb
B. Clemmensen
C. Cannizzaro
D. None
4 The presence of a double bond in a compound in the sign of:
A. Saturation
B. Unsaturation
C. Subsitution
D. None
5 Which of the following decolorized Br2-water
A. Methane
B. Ethane
C. Ethene
D. Propane
6 De halogenatiion of tetrahalides happens in the presence of active metal like
A. Zn
B. Mg
C. Both a and b
D. None of them
7 Nitroalkane are used in
A. Fuel
B. Solvents
C. Organic synthesis
D. All of them
8 If we remove one hydrogen atom from an alkane we obtain a group called
A. Acetyle group
B. Formyle group
C. Alkyle group
D. Ketyle group
9 Which reaction is too vigorous to control
A. Chlorination
B. Bromination
C. Iodination
D. Fluorination
10 Zn + HCI are used in
A. Clemenson reduction
B. Wof kishner reduction
C. Kolb's electrolysis
D. Wutruz reaction

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