The compound shown below can be readily prepared by Friedel-Crafts reaction between

Which of the following compounds is most reactive toward an electrophilic substitution reaction?

The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is:

For the following Friedel-Crafts alkylation reaction, which of the statements are correct?
$A$. Major product is n-propyl benzene.
$B$. iso-propyl carbocation intermediate is also generated.
$C$. Multiple substitution is inevitable.
$D$. Introducing electron-donating substituent on benzene will not produce any alkyl benzene.

In electrophilic aromatic substitution reactions of chlorobenzene,the $ortho/para$-directing ability of chlorine is due to its

Which one of the following compounds is prepared in the laboratory from benzene by a substitution reaction?