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Chemistry Fsc Part 2 Chapter 10 Online Test MCQs With Answers
Question # 1
Which substance is used to convert alcohol to alkyl halide.
Choose an answer
SOCl2
PCl3
HCl +ZnCl2
All of these
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Question # 2
Grignard reagent is reactive due to
Choose an answer
The presence of halogen atom
The presence of Mg atom
The polarity of C -Mg bond
None of the above
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Question # 3
An alkyl halide may be converted to alcohol by
Choose an answer
Addition
Substitution
Dehydrohalogenation
Elimination
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Question # 4
Cyanogen chloride reacts with ethyl magnesium bromide to give
Choose an answer
CH
3
CH
2
Cl
CH
3
CH
2
Br
C
4
H
10
+
CH
3
CH
2
CN
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Question # 5
The reaction of alkyl halides with sodium metal in the presence of ether to from alkane is known as.
Choose an answer
Wortz reaction
Frankland reaction
Sabatier sendron
Kolbe's synthesis
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Question # 6
For which mechanisms, the first step involved is the same
Choose an answer
E
1
and E
2
E
2
and SN
2
E
1
and E
2
E
1
and SN
1
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Question # 7
Acetic acid can be obtained from CH3MgI by treatment with.
Choose an answer
H2O
CINH2
CO2
HCHO
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Question # 8
Which one of the following species is a nucleophile
Choose an answer
CH3
(CH3)2 C
BF3
OH-
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Question # 9
S
N
2 mechanism involves
Choose an answer
1st order kinetics
2nd order kinetics
3rd kinetics
zero order kinetics
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Question # 10
Which compound is formed, when CH
3
OH reach with CH
3
- Mg -Br
Choose an answer
Ethane
Methane
Ethanol
Acetone
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Question # 11
When CO
2
is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is
Choose an answer
propane
propanoic acid
propanal
propanol
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Question # 12
The reactivity order of alkyl halides for a particular alkyl group is
Choose an answer
Fluoride > Chloride > Bromide > iodide
Chloride > Bromide > Fluoride > iodide
Bromide > iodide > chloride > Fluoride
Iodide > Bromide > Chloride > Fluoride
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Question # 13
In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms.
Choose an answer
One
Two
Three
Four
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Question # 14
S
N
2 reactions can be carried out with
Choose an answer
Primary alkylhalide
Secondary alkyhalide
Tertiary alkylhalide
All of these
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Question # 15
Which one of the following alkanes will be formed by the hydrolysis of ethyl magnesium bromide
Choose an answer
Methane
Ethane
Butane
do not hydrolysed
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Question # 16
What products is formed when ethyl bromide reacts with magnesium to form Grignard's reagent.
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Pyridine
Anhydrous ether
Ethyl alcohol
Carbon tetrachloride
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Question # 17
Which one of the following reactants will be required to form ethyl alcohol form ethyl bromide.
Choose an answer
Alcoholic KOH
Aqueous KOH
Alkaline KMnO4
Sodium metal in ether
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Question # 18
Elimination biomolecular reactions involve.
Choose an answer
First order kinetics
Second order kinetics
third order kinetics
Zero order kinetics
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