Which of the following reagents can be used to oxidize $Butan-2-one$?

An aldehyde or ketone containing at least one $\alpha-H$ atom reacts with dilute $NaOH$ to form a $\beta-$hydroxy aldehyde or $\beta-$hydroxy ketone. This reaction is known as $—$

Addition of alcohols to aldehydes in the presence of anhydrous acids yields:

What is the product formed when a $Grignard$ reagent $(RMgX)$ reacts with acetone $(CH_3COCH_3)$?

Identify the final product $D$ in the given reaction sequence:
$CH_3CH_2Cl$ $\xrightarrow{Aq. KOH} A$ $\xrightarrow{PCC} B$ $\xrightarrow{Cl_2/NaOH} C$ $\xrightarrow{Acetone} D$
Product $D$ is known as:

The iodoform test can differentiate between:
$A$. Methanol and Ethanol
$B$. $CH_3COOH$ and $CH_3CH_2COOH$
$C$. Cyclohexene and cyclohexanone
$D$. Diethyl ether and Pentan$-3-$one
$E$. Anisole and acetone
Choose the correct answer from the options given below: