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ECAT Chemistry Chapter 18 Fundamental Principles of Organic Chemistry Online Test MCQs With Answers
Question # 1
On passing ethane into concentrated suphuric acid the intermediate compound formed on hydrolysis with boiling water gives
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Methyl alcohol
Ethyl alcohol
Ethyl hydrogen sulphate
Methyl hydrogen sulphate
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Question # 2
Which of the following is a product of destructive distillation of coal
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Ammonia
Coke
Cyanides
Kerosene
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Question # 3
General formula of carbocyclic acids is:
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RCOH
RCOR
RCOOR
R-OH
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Question # 4
1-butene an 2-butene are an example of
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Chian isomerism
Positional isomerism
Metamerism
Functional group isomerism
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Question # 5
Fossil fuels consist of :
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Coal
Natural gas
Petroleum
All of these
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Question # 6
Unsaturated hydrocarbon containing a double bond are called
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paraffin
Alkanes
Olefins
Acetylene
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Question # 7
The essential component of organic compound is
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O
C
P
N
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Question # 8
Hydrocarbons contain
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C and S only
C and H only
C, H, and O only
C, H, O and N only
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Question # 9
The structure of benzene is
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Hexagonal
Pyramidal
Square planer
Tetrahedral
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Question # 10
In a heterollytic bond fission reaction
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A molecule of H
2
O is formed
A molecule of H
2
O is eliminated
A free radical is formed
A positive and a negative ion is formed
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Question # 11
The active part in a molecule is called
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Hetroatom
Functional group
Chemical bond
Ion
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Question # 12
Which is a mixture of low boiling hydrocarbon
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Natural gas
Petroleum
Wood
Graphite
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Question # 13
Compounds having the same molecular formula, but different functional groups show
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Metamerism
Position isomerism
Chain isomerism
Functional group isomerism
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Question # 14
Which reaction produces a free radical
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SN reaction
Homelytic fission reaction
Heterolytic fission reaction
Addition reaction
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Question # 15
Diversity of organic compounds in millions is:
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Four
Five
Six
Seven
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Question # 16
Which of the following is an aromatic compound
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Propanol
Cyclohexane
Acetone
Benezene
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Question # 17
Identify the heterocyclic compound
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Toluene
Pyridine
Butanoic acid
Propenol
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Question # 18
The open chain compounds are also called
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Aliphatic
Alicylic
Aromatic
Both a and b
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Question # 19
Select from the following which one is alcohol?
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CH
3
-CH
2
-OH
CH
3
-O-CH
3
CH
3
COOH
CH
2
-CH
2
-BR
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Question # 20
Compounds of carbon and hydrogen in which the tetra valency of carbon is fully satisfied are called,
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Saturated
Un-saturated
Magnetic
Para-magnetic
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Question # 21
Organic compounds generally react at ______ rates
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Slow
Fast
Moderate
None of them
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Question # 22
Which of the following contains single bonds
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Benzene
Alkyne
Alkene
Alkane
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Question # 23
The destructive distillation of coal gives three products. What is not the product of destructive distillation of coal
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Coal gas
Carbon dioxide
Coal tar
Coke
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Question # 24
The active part in a molecule is called
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Homologous series
Functional group
Chemical bonding
Ionic complex
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Question # 25
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1
2
3
4
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Question # 26
Functional group of ketones is:
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---CHO
---CO---
---C
≡ N
---COOH
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Question # 27
The branch of chemistry which deals with the study of compounds containing carbon as an essential elements is called
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Physical
Inorganic
Nuclear
Organic
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Question # 28
Which of the following compounds contains a triple bond?
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Alkane
Alkene
Alkyne
Benzene
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Question # 29
The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called
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Functional isomers
Position isomers
Chain isomers
Metamers
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Question # 30
Hybridzation explain the --------- of orbitals
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Type of bonding
Shapes
Shape and type of bonding
None of above
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Question # 31
Closed chain compound can be classified into
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Homocyclic
Hetrocyclic
Aliphatic
Both a and b
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