The final product formed when acetaldehyde is reduced with sodium and alcohol is

The product of the following reaction is:

Which one of the following is not formed by aldol condensation of a mixture of ethanal and propanal?

The correct sequence of reagents for the following conversion will be:

The structure of $(R)$ is:

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 $B$?