The intermediate $X$,in the reaction shown below,is ..... .

Phenol is

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

Phenol $\xrightarrow[\Delta ]{Zn} A$ $\xrightarrow[\text{Anhydrous } AlCl_3]{CH_3Cl} B$ $\xrightarrow[\Delta ]{KMnO_4/OH^{-}} C$
The product $C$ is

Match List-$I$ with List-$II$:

List-$I$ (Compound)	List-$II$ ($pK_a$ value)
$A$. Ethanol	$I$. $10.0$
$B$. Phenol	$II$. $15.9$
$C$. $m$-Nitrophenol	$III$. $7.1$
$D$. $p$-Nitrophenol	$IV$. $8.3$

Choose the correct answer from the options given below:

Arrange the following compounds in increasing order of their acid strength: $Propan-1-ol$,$2,4,6-trinitrophenol$,$3-nitrophenol$,$3,5-dinitrophenol$,$phenol$,$4-methylphenol$.