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ECAT Chemistry Chapter 18 Fundamental Principles of Organic Chemistry Online Test MCQs With Answers
Question # 1
The percentage of methane in natural gas is
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50%
60%
85%
90%
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Question # 2
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3
4
5
2
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Question # 3
The self linking of carbon atoms is called
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Chelation
Isomerism
Catenation
None of the above
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Question # 4
The functional group isomer of dimethylether is
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Ethyl alcohol
Propyl alcohol
Diethyl ether
Butyl alcohol
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Question # 5
Geographical survey of Pakistan estimates about billion tons of coal in Pakistan:
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182
183
184
185
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Question # 6
At present oil refineries in Pakistan are:
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One
Two
Three
Four
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Question # 7
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0 1
0 2
1 1
1 2
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Question # 8
The formula of ketone is
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None of these
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Question # 9
Organic compounds are soluble in all except
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Benzene
Petroleum
Ether
Water
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Question # 10
The distillation of coal at high temperature and in absence of air is called
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Vacuum distillation
Normal distillation
Fractional distillation
Destructive distillation
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Question # 11
The process in which one s and two p orbitals mix up with each other is called
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Sp-hybridization
Sp
2
-hybridization
Sp
3
-hybridization
Dsp
2
-hybridization
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Question # 12
Number of
isomers of butane are:
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One
Two
Three
Four
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Question # 13
Cracking done at low pressure and with a catalyst is called _______ cracking
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Thermal
Catalytic
Steam
None of them
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Question # 14
Which one of the followings is a heterocyclic compound
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Cyclohexanol
Phenol
Pyridine
Anthracene
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Question # 15
Which of these always applies to a nucleophile
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It attacks a double bond
It has a lone pair of electrons
It is single atom
It is negatively charged
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Question # 16
Functional group of ketones is:
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---CHO
---CO---
---C
≡ N
---COOH
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Question # 17
The fractions obtained from fractional distillation of petroleum are placed in increasing order of their boiling points. Which order is correct
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Natural gas, petroleum ether, gasoline kerosene
Petroleum ether, kerosene, natural gas, petroleum ether
Gasoline, kerosene, natural gas, petroleum ether
Kerosene, gasoline, petroleum ether, natural gas
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Question # 18
Type of isomerism in BrCH=CHBr is:
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Structural isomerism
Conformational isomerism
Geometrical isomerism
Positional isomerism
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Question # 19
The essential component of organic compound is
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O
C
P
N
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Question # 20
Wohler succeeded in obtaining, urea from
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Cyanogen
Ammonium cyanate
Ammonium hydroxide
None of these
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Question # 21
Similarity in properties of different organic compounds give rise to the under standing of ______
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Polymerization
Non-polar nature
Homologous series
Isomerism
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Question # 22
The gasoline having octane No. 100 has ______
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More knocking
Less knocking
No knocking
Only knocking
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Question # 23
The catalyst,. which is used as specialist for cracking, are
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Aluminates
Alumlnosilicates
Aluminium slats
All can be used
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Question # 24
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 # 25
General formula of carbocyclic acids is:
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RCOH
RCOR
RCOOR
R-OH
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Question # 26
Rates of organic reactions are
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Fast
Very fast
Slow
Non-reactive
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Question # 27
Normal by product of cracking is
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Ethane
Butane
Benzene
All of them
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Question # 28
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 # 29
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Addition Elimination
Addition Reduction
Elimination Reduction
Substitution Elimination
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Question # 30
Tetraethyle lead causes disease:
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Typhoid
Respiratory
Stomach
Muscular
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Question # 31
Which structure shows a primary alcohol
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