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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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Total Questions30
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Time Allowed30
ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons
00:00
Question # 1
Benzene is prepared from n-hexane in the presence of catalyst
Question # 2
The hydrocarbons having double bonds normally end with suffix
Question # 3
Alkyne is :
Question # 4
Substituted phenyl groups are called
Question # 5
the unreactivity of alkanes is based upon
Question # 6
When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product
Question # 7
When acetylene is passed through a copper tube at 300°C, it polymerizes to
Question # 8
Which one of the following gases is used for artificial ripening of fruits ?
Question # 9
The order of dehydration of alcohol
Question # 10
Which of the following is not an ortho-para directing group
Question # 11
Alkyl benzenes are readily oxidized by axidfied
Question # 12
The hydrocarbon which is used as an illuminating agent
Question # 13
Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y are respectively
Question # 14
Benzene does not undergo polymerization and it is also resistant to
Question # 15
Alkanes containing carbon C18ownwards are
Question # 16
Meta directing group decreased the ----------- of benzene ring
Question # 17
Preparation of vegetable ghee involves
Question # 18
B-B'-dichloroethyl sulphide is commonly known as
Question # 19
Nitroalkane are used in
Question # 20
Hybridization in alkanes is:
Question # 21
The major reaction occurring in the engines of automobiles is
Question # 22
The three alternate single and double bonds in the benzene ring are called
Question # 23
Which is symmetric alkene?
Question # 24
How many isomeric disubtituted products are obtained by the introducing of second group in the ring
Question # 25
Acetylene is used in the manufacture of
Question # 26
The method involved for electrolysis of Na or K salts of carboxylic acids
Question # 27
Substitution of halogen in the benzene ring requires catalyst
Question # 28
Alkanes are gases :
Question # 29
Benzene has a -------- structure
Question # 30
The sp2hybird orbitals are oriented in space at one angle
Top Scorers Of ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons MCQ`s Test
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M M Umer Arain 29 - Nov - 2024 00 Min 03 Sec 110/120 -
G GOVT. SUFFA EDUCATION CENTER GIRLS MURIDKE 01 - Jun - 2024 04 Min 52 Sec 110/120 -
H Huzaifa Asim 29 - May - 2024 02 Min 21 Sec 100/120 -
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Z Zoya Zoya 27 - May - 2024 11 Min 30 Sec 85/120
ECAT Chemistry Chapter 19 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Which of the following reaction is characteristic of benzene |
A. Electrophilic substitution reaction
B. Reduction
C. Oxidation
D. Ozonolysis
|
| 2 | Benzene is prepared from n-hexane in the presence of catalyst |
A. Cr2O3
B. Al2O3
C. SiO2
D. All above
|
| 3 | Sp3hybird orbitals are oriented at an angle of |
A. 107.5°
B. 108.5°
C. 109.5°
D. 103.5°
|
| 4 | Sulphuric acid generates nitronium ion by reacting with |
A. Nitric acid
B. Nitrogen gas
C. Nitrous acid
D. Potassium nitrate
|
| 5 | The general formula of alkane is |
A. CnH2n+2
B. CnHn
C. CnH2n
D. C2H2n-1
|
| 6 | Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called |
A. Wurtz reaction
B. Fitting reaction
C. Wurtz fitting reaction
D. None of these
|
| 7 | Alkenes normally have ______ geometry |
A. Tetrachedral
B. Linear
C. Planer
D. None
|
| 8 | Hydrocarbons contain : |
A. Carbon only carbon
B. Hydrogen only
C. Carbon & hydrogen
D. Carbon , hydrogen & halogen
|
| 9 |
|
A. 2, 3-dimethylbutane
B. 2, 3-methylbutane
C. 2-dimethylbutane
D. Dimethylbutane
|
| 10 | The addition of HBr is easiest with |
A. CH2 = CHCl
B. CICH = CHCl
C. CH3 - CH = CH2
D. (CH3)2 C = CH2
|
Test Questions
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