Which of the following is not an $o, p-$ directing group?

Formaldehyde reacts with methyl magnesium iodide to form an additive product,which upon aqueous hydrolysis yields:

Consider the following chemical reaction.
$CH \equiv CH \xrightarrow[{(2) CO, HCl, AlCl_3}]{{(1) Red hot Fe tube, 873 K}} \text{Product}$
The number of $sp^{2}$ hybridized carbon atom$(s)$ present in the product is ..........

In the presence of which of the following is the Clemmensen reduction of ketones carried out?

$CH_3-CH_2-OH$ $\xrightarrow{PCC} A$ $\xrightarrow{HCN} B$ $\xrightarrow[\Delta]{H_3O^{+}} C$
Compound $C$ is:

Match the following:

Column-$1$ (Reaction of carbonyl compound with)	Column-$2$ (Product)
$A$. Hydroxylamine	$I$. Hydrazone
$B$. Alcohol	$II$. Schiff's base (Substituted imine)
$C$. Hydrazine	$III$. Oxime
$D$. Amine	$IV$. Ketal

The correct match is: