The number of products obtained in the following reaction is:

Arrange the following compounds in the correct order of their reactivity towards nucleophilic addition reactions:
$I: CH_3CHO$
$II: CH_3CONH_2$
$III: HCHO$
$IV: CH_3COCH_3$

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:

Which of the following substances will give the silver mirror test?

Consider all possible isomeric ketones,including stereoisomers of $MW = 100$. All these isomers are independently reacted with $NaBH_4$ ($NOTE$: stereoisomers are also reacted separately). The total number of ketones that give a racemic product$(s)$ is/are

Write a note on the electrophilic substitution reaction of aromatic aldehydes and ketones.