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

Write the name of following compound

Question # 2

Acetylene gives

Question # 3

Substitution of halogen in the benzene ring requires catalyst

Question # 4

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

Question # 5

Preparation of vegetable ghee involves:

Question # 6

The carbon, carbon bond length in benzene is

Question # 7

The Total coal resources of Pakistan are estimated to be

Question # 8

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

Question # 9

Mustard gas is a

Question # 10

An alkynes having Carbon count of 20 is

Question # 11

Hydrocarbon which is liquid at room temperature is

Question # 12

Ethylene decolorizes cold dilute solution of KMnO4. This test is known as

Question # 13

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

Question # 14

Which of the following is not aromatic hydrogencarbon

Question # 15

Catalytic oxidation of alkanes is used for the preparation of

Question # 16

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

Question # 17

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

Question # 18

Kolb's method of alkanes production, is actually

Question # 19

Which one of following is not monocyclic aromatic hydrocarbon

Question # 20

Kolb's method is not useful for the production of

Question # 21

Hydrocarbons contain :

Question # 22

A six membered ring containing one double bond called

Question # 23

If we remove one hydrogen atom from an alkane we obtain a group called

Question # 24

Kolb's method has limited synthetic applications due to

Question # 25

The empirical formula of benzene is determined by

Question # 26

Acetylene is used in the manufacture of

Question # 27

The sp2hybird orbitals are oriented in space at one angle

Question # 28

The electron releasing effect of methyl group is significant and it makes ring a good

Question # 29

All C - H bond lengths of benzene ring is

Question # 30

Alkenes combine readily with electrophillic reagents such as halogens giving

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Benzene is obtained by fractional distillation of
A. Heavy oil
B. Anthracene oil
C. Middle oil
D. Light oil
2 the unreactivity of alkanes is based upon
A. Inertness of sigma bond
B. Non-polarity of the bonds
C. Both A and B
D. None of above
3 Complete combustion of alkane yields
A. CO2+ H2O
B. CO2+ heat
C. CO + H2O heat
D. CO2+ H2O + heat
4 Marsh gas was the name given to
A. Methane
B. Ethane
C. Propane
D. Butane
5 The three alternate single and double bonds in the benzene ring are called
A. Conjugate bonds
B. Resonating bonds
C. Both A and B
D. None of above
6 Odour of alkene is:
A. Fruity
B. Odourless
C. Zarlic like
D. Irritating
7 Mustard gas is a
A. Gas
B. High boiling speed
C. High melting liquid
D. Steam
8 When an aqueous solution of potassium salt of monocarboxylic acid is subjected to electrolysis, corresponding alkane is formed. This reation is known as
A. Cannizaro reaction
B. Sabatier-secderens reaction
C. Alkylation
D. Kolbe's reaction
9 Hydrocarbons contain :
A. Carbon only carbon
B. Hydrogen only
C. Carbon & hydrogen
D. Carbon , hydrogen & halogen
10 An alkynes having Carbon count of 20 is
A. gas
B. liquid
C. Solid
D. None

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