The following reaction is known as:

Which among the following is the strongest $o, p-$directing group?

Describe the reactions of nitration and bromination of phenol.

Electrophilic substitution reaction in phenol takes place at:

Which of the following is the correct decreasing order of acidic strength for the compounds listed below?
$I$: $p$-chlorophenol
$II$: $p$-Cresol
$III$: $p$-nitrophenol
$IV$: $p$-methoxyphenol

The Kolbe-Schmidt reaction is used for the synthesis of: