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Quiz 206
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4101. Acetophenone can be formed by which of the following reaction of benzene?
Alkylation
Halogenation
Acylation
Nitration
4102. The most readily sulphonated compound is:
Benzene
Chlorobenzene
Nitrobenzene
Toluene
4103. Select the nucleophile from the following example:
NO₂
NO₂⁺
NH₃
NH₄⁺
4104. The organic compound carbon tetrachloride is used:
Lubricant
Oxidant
Solvent
Plastic
4105. The order of reactivity of alkyl halides towards nucleophiles:
RI > RBr > RCl > RF
RF > RCl > RBr > RI
RF > RCl > RBr > RI
RF > RBr > RCl > RI
4106. The IUPAC name of the given compound is:
1-chloro-2-methylpropane
Isobutyl chloride
2-chloro butane
2-Methyl-3-chloropropane
4107. Which one of the following is not a nucleophile:
NH₃
H₂O
BF₃
CH₃⁻
4108. Which mechanism of reactions is shown by carbonyl compounds?
Electrophilic addition
Electrophilic substitution
Free radical substitution
Nucleophilic addition
4109. Which of the following would react with ozone in the atmosphere?
F
O₂
O
Cl
4110. When halogen is removed from an alkyl halide a carbocation is formed, Identify the most reactive carbocation:
Primary carbocation
Secondary carbocation
Tertiary carbocation
Methyl carbocation
4111. Freon is commonly known as:
Refrigerant
A solvent
Insecticides
A fire extinguisher
4112. Neopentyl chloride belongs to which class of alkyl halides?
Primary alkyl halides
Secondary alkyl halides
Tertiary alkyl halides
Quaternary alkyl halides
4113. In SN1 reaction the correct order of reactivity of alkyl halides is?
Primary > Secondary > Tertiary
Tertiary > Secondary > Primary
Secondary > Primary > Tertiary
Primary > Tertiary > Secondary
4114. Identify the correct ascending order of reactivity of alkyl halides:
Cl, Br, I, F
F, Cl, Br, I
Br, I, F, Cl
I, F, Cl, Br
4115. Which of the following is an example of tertiary alkyl halide?
2-chloro butane
1-chloro methyl pentane
2-bromo-3-methyl butane
2-bromo-2-methyl butane
4116. Isopropyl chloride is an example of:
Primary alkyl halide
Secondary alkyl halide
Tertiary alkyl halide
Quaternary alkyl halide
4117. Alkyl halides also known as halogen derivatives of:
Alkanes
Alkenes
Alkynes
Alcohols
4118. Which of the following alkyl halides has the highest boiling point?
n-butyl iodide
isobutyl iodide
isopropyl bromide
n-propyl bromide
4119. Which one of the following is a nucleophile?
H₂O
AlCl₃
BF₃
Cl⁻
4120. When purely alcoholic solution of sodium/potassium hydroxide and halogenoalkanes are reacted an alkene is formed. What is the mechanism of reaction?
Elimination
Dehydration
Debromination
Reduction of benzene
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