Which of the following reagents is used to convert phenol to benzene?

Benzoylation of phenol with benzoyl chloride in the presence of dilute $NaOH$ gives phenyl benzoate. This reaction is an example of

Given below are two statements:
Statement $I$: Phenol on treatment with $CHCl_3 / aq. KOH$ under refluxing condition, followed by acidification produces $p$-hydroxybenzaldehyde as the major product and $o$-hydroxybenzaldehyde as the minor product.
Statement $II$: The mixture of $p$-hydroxybenzaldehyde and $o$-hydroxybenzaldehyde can be easily separated through steam distillation.
In the light of the above statements, choose the correct answer from the options given below:

In the given reaction: $[X] +$ Acetic anhydride $\rightarrow$ Aspirin,$[X]$ will be:

The major product of the following reaction sequence is:
$C_6H_5OH \xrightarrow[(ii) NaOH, (iii) H^+]{(i) CHCl_3, NaOH(aq)} ?$

Which compound has hydrogen bonding?