The compound which does not respond to iodoform test is

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 $—$

An organic compound with the molecular formula $C_9H_{10}O$ forms a $2,4-DNP$ derivative,reduces Tollens' reagent,and undergoes the Cannizzaro reaction. On vigorous oxidation,it gives $1,2-benzenedicarboxylic$ acid. Identify the compound.

Which one of the following compounds will give an orange precipitate when treated with $2,4-$dinitrophenylhydrazine?

Which among the following compounds has the highest boiling point?

An organic compound $x$ where the molar ratio of $C$, $O$, and $H$ are equal, on treatment with $50\% \ KOH$ under reflux followed by acidification produced $y$. The most likely structure of $y$ is: [Molar mass of $x$ is $58 \ g \ mol^{-1}$]