Acetic acid is manufactured by the fermentation of

Identify product $C$ in the following conversion sequence: $m$-Hydroxybenzaldehyde $\xrightarrow[\text{Protection of } -OH \text{ group}]{C_6H_5CH_2Cl} A$ $\xrightarrow{[O]} B$ $\xrightarrow{\text{deprotection}} C$.

What is the catalyst used in the conversion of acetaldehyde to acetic acid?

Malonic acid can be prepared from acetic acid using which combination of chemicals in the proper sequence?

$CH_3MgBr + CO_2$ $\xrightarrow{\text{Dry ether}} Y$ $\xrightarrow{H_3O^{\oplus}} Z$
Identify $Z$ from the following.

What is the name of the given reaction? $CH_3CH = CH_2 \xrightarrow[(CO + H_2)]{H^+} CH_3 - CH(COOH) - CH_3$