For the given reaction,the value of $x$ is:

Match the compounds in Column-$I$ with their $C-O$ bond length in Column-$II$ and $C-O-H$ bond angle in Column-$III$.

Column-$I$ (Name)	Column-$II$ ($C-O$ bond length) and Column-$III$ ($C-O-H$ angle)
$A$. Methanol	$1$. $141 \ pm$,$i$. $109^o$
$B$. Phenol	$2$. $136 \ pm$,$ii$. $111.7^o$
$C$. Methoxymethane	$3$. $142 \ pm$,$iii$. $108.9^o$

Ethanol is prepared industrially by

In which of the following reactions is phenol or sodium phenoxide $NOT$ formed?

Match the columns:

Column-$I$	Column-$II$
$A$. Methanol	$p$. Conversion of phenol to salicylic acid
$B$. Kolbe's reaction	$q$. Wood spirit
$C$. Williamson's reaction	$r$. Vapours are passed over heated copper at $573 \ K$
$D$. Conversion of $2^\circ$ alcohol to ketone	$s$. Reaction of alkyl halide with sodium alkoxide

$(i)$ Draw the structures of all isomeric alcohols of molecular formula $C_5H_{12}O$ and give their $IUPAC$ names.
$(ii)$ Classify the isomers of alcohols in question $(i)$ as primary,secondary and tertiary alcohols.