Which of the following is $\underline{\text{NOT}}$ a dihydric phenol?

$A$ compound $A$ $(C_{7}H_{8}O)$ is insoluble in $NaHCO_{3}$ solution but dissolves in $NaOH$ and gives a characteristic colour with neutral $FeCl_{3}$ solution. When treated with bromine water,compound $A$ forms the compound $B$ with the formula $C_{7}H_{5}OBr_{3}$. $A$ is:

How can phenol and cyclohexanol be distinguished?

Which of the following fact$(s)$ explain$(s)$ why $p-$nitrophenol is more acidic than phenol?
$I$. $-I$ Effect of the nitro group.
$II$. Greater resonance effect of the $p-$nitrophenoxy group.
$III$. Steric effect of the bulky nitro group.

Which of the following produces violet colour with $FeCl_3$ solution?

The major product of the following reaction is: