Compounds $A$ and $B$,both were treated with $NaOH$,producing a single compound $C$. Identify compound $C$.

Which of the following reactions is preferentially used to prepare the corresponding alkanes from alkanones?

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 $58 \ g \ mol^{-1}$]

$PhMgBr$ [Excess] + $CH_3COCl \xrightarrow{H_3O^+}$
The final product of the above reaction is:

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

Predict the product $X$ for the following reaction:
$2\text{-oxocyclohex-3-en-1-yl} \text{ acetate derivative} \rightarrow{NaBH_4, MeOH} X$