The addition of $HCN$ to carbonyl compounds is an example of

Which of the following can be distinguished by the iodoform reaction?

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

$CH_3-CH_2-CHO \xrightarrow{Red\,P + HI} A$. Product $A$ is:

The product$(s)$ formed when $m$-chlorobenzaldehyde is heated with concentrated $NaOH$ is/are:

The molecular formula of compound $A$ is $C_2Cl_3OH$. It reduces Fehling's solution and on oxidation gives a monocarboxylic acid $B$. Compound $A$ is obtained by the reaction of chlorine with ethyl alcohol. What is $A$?