Why chlorobenzene is less reactive than alkyl chloride towards nuclecphilic substitution reaction?

Account for the following : (a) Alkyl halides prefer to undergo dehydrohalogenation in the presence of a strong base such as Na metal instead of undergoing Wurtz reaction. (b) Allyl chloride is more reactive than the n-propyl chloride towards nucleophilic substitution reaction. Explain why?

Explain why chlorobenzene is less reactive than ethyl chloride.

Explain why chlorobenzene is less reactive than benzyl chloride.

Haloarenes are much less reactive than haloalkanes towards nucleophilic substitution reaction. Give reason.

Explain, why. alkyl halides undergo nucleophilic substitution reaction?

Chlorobenzene is extremely less reactive towards a nucleophilic substitution reaction. Give two reasons for the same.

Why aryl halides are less reactive than alkyl halides?

Give reason why: alkyl aryl ethers are less reactive than phenols towards electrophilic substitution reactions.

Which of the following is most reactive towards nucleophilic substitution reaction ?