Haloalkanes and Haloarenes Test

Directions For Questions

Alkyl halides and alcohols easily undergo nucleophilic substitution either through $$S_N1$$ or $$S_N2$$ mechanism. The relative case of these two processes depends upon the nature of the substrate (alkyl group) as well as leaving group, nature of nucleophile and also upon the nature of the solvent.
$$S_N1$$ mechanism involves the formation of carbocation as intermediate while $$S_N2$$ mechanism involves the formation of a transition pentavalent state. $$S_N1$$ is the main mechanism in $$3^0$$ alkyl halides and alcohols, while $$S_N2$$ mechanism is the path adopted by most of the $$1^o$$ alkly halides; $$2^o$$ alkyl halides may follow $$S_N1$$ as well as $$S_N2$$.

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Haloalkanes and...

Question 1

Chlorobenzene

Tert-butyl chloride

Iso-propyl chloride

None of the above

Question 2

$$1-bromo-1'-chloro-4,\,4'-bicyclobutane$$

$$4-(4'-chlorocyclobutyl)-1-bromocyclobutane$$

$$3-bromo-3'-chloro-1,1'-bicyclobutane$$

$$4-(4'-bromocyclobutyl)-1-chloro cyclobutane$$

Question 3

$$100$$% retention

$$100$$% inversion

$$100$$% racemization

Inversion more than retention leading to initial racemization

Question 4

Water

Ethanol

Diethyl ether

n-hexane

Question 5

Question 6

$$1,2$$- Dichlorobenzene

$$1,3$$- Dichlorobenzene

$$1,4$$- Dichlorobenzene

Both A and C

Question 7

chlorobenzene

benzaldehyde

anlline

benzoic acid

Question 8

$$2$$- chloropropane and chloromethane

$$2$$- chloropropane and chloroethane

chloromethane and chloroethane

chloromethane and $$1$$- chloropropane

Question 9

Ortho-dichlorobenzene

Para-dichlorobenzene

Meta-dichlorobenzene

A and C both

Question 10

o-bromotoluene

m-bromotoluene

p-bromotoluene

3-bromo-2, 2, 6-trichlorotoluene

User

Question Analysis

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