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.

more

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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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