Welcome to the Quiz!
This quiz contains 9 questions from a mix of 1 subtopics.
Explain why chlorobenzene is less reactive than chloroethane.
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Which of the following statements is true about the halogenation of benzene?
it occurs via a nucleophilic substitution mechanism
it produces an addition product
it requires a halogen carrier catalyst
it disrupts the aromatic stability of the ring
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What is the main reason for the decreased reactivity of chlorobenzene compared to chloroethane?
the presence of the aromatic ring
the inability to undergo electrophilic substitution
the absence of an activating group
the lack of a partial double bond
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Which of the following is NOT a consequence of the delocalisation of the chlorine atom's lone pair in chlorobenzene?
increased reactivity compared to chloroethane
increased carbon-chlorine bond strength
partial double bond character of the carbon-chlorine bond
decreased reactivity compared to chloroethane
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What is the key difference between electrophilic substitution and free radical halogenation of arenes?
the catalyst used
the part of the molecule that is substituted
the number of products formed
the type of halogen used
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What are the products of the reaction between methylbenzene and chlorine using a halogen carrier catalyst?
(Select all that apply).
3-chloromethylbenzene
1-chloromethylbenzene
2-chloromethylbenzene
4-chloromethylbenzene
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Halogenoalkanes are reactive than halogenoarenes.
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What is the role of the catalyst in the halogenation of benzene?
to stabilise the carbocation intermediate
to donate electrons to the chlorine atom
to activate the benzene ring
to polarise the Cl-Cl bond
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What is the catalyst used in the reaction of benzene with chlorine?
aluminium chloride
aluminium bromide
hydrochloric acid
chloric(I) acid
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