The rate of electrophilic substitution reaction in phenol is -

$C_6H_6 + CH_3-CH=CH_2$ $\xrightarrow{H_3PO_4} A$ $\xrightarrow{O_2, \text{heat}} B$ $\xrightarrow{\text{dil. } H_2SO_4} C + D$. $A, C$ and $D$ are:

When carbolic acid is heated with concentrated nitric acid in the presence of concentrated sulphuric acid,it forms:

An organic compound with molecular formula $C_7H_8O$ dissolves in $NaOH$ and gives a characteristic colour with $FeCl_3$. On treatment with bromine,it gives a tribromo derivative $C_7H_5OBr_3$. The compound is

The major product in the following reaction is:

The major reason that phenol is a better Bronsted acid than cyclohexanol is that