What would be the expected product of the reaction of propyne with ${\mathrm{Br}}_2/{\mathrm{H}}_2\mathrm{O}$ if the mechanism of this reaction is analogous to that of propene?(Bromoacetone/Bromopropanol)

The major product of the following reaction is

A, B and C respectively are

The major product in the following reactions is

${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{C}\equiv \mathrm{CH}\underset{\left(\mathrm{ii}\right)\mathrm{HI}\left(1\mathrm{eq}\right)}{\overset{\left(\mathrm{i}\right)\mathrm{HCl}\left(1\mathrm{eq}\right)}{\to }}$

In the following reaction sequence



X and Y are, respectively

In the reaction


$\mathrm{x}$ and $\mathrm{y}$ , respectively, are

Consider the following reaction:

The product $\left(\mathrm{Y}\right)$ is

Which among the following depicts the correct order of acidity?