MCQ Quiz (35 Qs): Haloalkanes & Haloarenes 🧪
Chapter Test: All Topics
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Benzene +
C₂H₅Cl→ [Anhy. AlCl₃] →C₆H₅C₂H₅+ HCl. The reaction isShow Answer
b) Friedel Crafts reaction
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CH₃CH₂-Cl+ NaI → [Acetone, Heat] →CH₃CH₂-I+ NaCl. The reaction is :Show Answer
c) Finkelstein reaction
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Toluene + HI → A. Here 'A' is
Show Answer
a) Iodobenzene (Note: This is based on the book's answer; the reaction is not standard.)
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Structural formula of 1-Chlorobutane is :
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b)
CH₃-CH₂-CH₂-CH₂-Cl(Note: The book's answer key (1) is incorrect and refers to 1-Chloropropane.) -
The compound which reacts with HBr in accordance with the Markownikow's rule is :
Show Answer
d)
(CH₃)₂C=CH₂ -
CH₃-CH₂-I+ AgCN (alc) → 'A'. Here 'A' isShow Answer
a)
CH₃-CH₂-NC(Isocyanide) -
Toluene +
Cl₂/hv→ A, 'A' isShow Answer
d) None of these (The product is Benzyl chloride, which is not listed.)
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When
NH₃is reacted with excess of alkyl halide, we getShow Answer
d) a mixture of all these (and a quaternary salt)
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The products of the following reaction is/are :
C₂H₅-Br+ 2Na +CH₃-Br→ [dry ether] →Show Answer
b) ethane, propane and butane
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Chlorobenzene +
H₂O(steam) → [Δ] → A ; A isShow Answer
b) Phenol (Dow's Process)
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Which of the following compounds is optically active
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b) 2-chlorobutane
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The IUPAC name of the compound shown (3-Bromo-1-chlorocyclohex-1-ene) is:
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c) 3-Bromo-1-chlorocyclohexene
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Ethyl bromide reacts with silver nitrite (AgNO₂) to form
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a) Nitro ethane
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Which of the following will react faster in $S_N2$ reaction?
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a)
CH₃I(Note: The book's answer (3) is incorrect. $S_N2$ is fastest for primary halides.) -
CH₃Br+ 2Na +CH₃Br→CH₃-CH₃+ 2NaBr; the reaction isShow Answer
a) Wurtz reaction
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Which of the following has highest dipole moment?
Show Answer
a) Methyl chloride (
CH₃Cl) -
CH₃-CH₂-Br+ KOH (alc) → [Δ] → A, 'A' is :Show Answer
a)
CH₂=CH₂(Note: The book's answer (2) is incorrect. Alcoholic KOH causes elimination.) -
Isobutyl chloride react with AgCN to give
Show Answer
a) isobutyl isocyanide (The book's option (1) was vague, this is the correct product.)
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CH₃-CH₂-I+ KCN (alc) → 'A'. Here A isShow Answer
b)
CH₃-CH₂-CN(Note: The book's answer (1) is incorrect. KCN gives cyanide.) -
The synthesis of alkyl fluoride is best accomplished by :
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b) Swarts reaction
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Ethylbenzene +
Cl₂→ [Heat, Sunlight] → A. Here 'A' isShow Answer
a) 1-chloro-1-phenylethane (Substitution at benzylic carbon)
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To prepare a Grignard reagent,
Mgis reacted with what in dry ether?Show Answer
b)
C₂H₅Cl(Ethyl chloride) -
In an $S_N1$ reaction, which substrate will have the fastest rate of reaction?
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d)
(CH₃)₃CCl(Tertiary halide is most stable carbocation) -
Which poisonous gas is formed when chloroform is exposed to air and sunlight?
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b)
COCl₂(Phosgene) -
Which of the following compounds will give a positive Iodoform test?
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b) Propan-2-ol
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What occurs in the mechanism of an $S_N2$ reaction?
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b) Inversion of configuration
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What is formed when chlorobenzene reacts with aqueous
NH₃in the presence ofCupowder at high pressure?Show Answer
c) Aniline
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What is the IUPAC name of D.D.T.?
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a) 1,1,1-Trichloro-2,2-bis(p-chlorophenyl)ethane
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What happens in the Wurtz-Fittig reaction?
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a) An aryl halide and an alkyl halide with sodium in ether
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The reaction in the presence of alcoholic
KOHis called:Show Answer
c) Dehydrohalogenation
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Which of the following has the highest boiling point?
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c)
CH₃I(Highest molecular mass/Van der Waals forces) -
In the Sandmeyer's reaction, the diazonium salt is treated with:
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a)
CuCl / HCl -
Which of the following compounds is not chiral?
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b) 1-Chlorobutane
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The C-Cl bond in chlorobenzene, compared to the C-Cl bond in an alkyl chloride, is:
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b) Shorter and stronger (due to partial double bond character)
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The compound used as a refrigerant is:
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b)
CF₂Cl₂(Freon-12)
