What is obtained when calcium acetate is dry distilled?

Explain different methods of formation of benzaldehyde by chemical reactions.

Which of the following is obtained by hydrogenation of benzoyl chloride in the presence of $Pd$ on $BaSO_{4}$?

Consider the following reactions:
$C_2H_2 + H_2O \xrightarrow[333 \ K]{Hg^{2+} / H^{+}} [X] \stackrel{\text{Isomerisation}}{\rightleftharpoons} Y$
$Y$ cannot be obtained from which of the following reactions?

Identify the reaction shown below:
$C_6H_5CN \xrightarrow[(ii) H_3O^+]{(i) SnCl_2 + HCl} C_6H_5CHO$

The sequence of reagents required to convert ethyl bromide to propanal is