The reaction between an ester and an excess of Grignard reagent $(R'MgX)$ finally results in a:

Consider the following sequence of reactions.
$C_6H_5COONa$ $\xrightarrow[\Delta]{NaOH/CaO} X$ $\xrightarrow[\text{Anhy. } AlCl_3]{CO/HCl} Y$ $\xrightarrow[NaOH]{\text{conc. }} A + B$.
If $A$ is the reduction product of $Y$,what is $B$?

Given below are two statements:
Statement $I$: Cross aldol condensation between two different aldehydes will always produce four different products.
Statement $II$: When semicarbazide reacts with a mixture of benzaldehyde and acetophenone under optimum pH, it forms a condensation product with acetophenone only.
In the light of the above statements, choose the correct answer from the options given below:

Which of the following does not react with $NaHSO_3$ (sodium bisulphite)?

What are the products formed when an aldehyde $(R-CHO)$ is reacted with Tollen's reagent?

Which one of the following reactions is a method for the conversion of a ketone into a hydrocarbon?