The reaction of $1,2$-dibromoethane with alcoholic potash yields.......

Alkynes can undergo which of the following reactions?

$HC \equiv CH$ $\xrightarrow[20\% \ H_2SO_4]{1\% \ HgSO_4} A$ $\xrightarrow{CH_3MgX} B$ $\xrightarrow{[O]} ?$
What is the final product of the above reaction sequence?

Which of the following would be produced when acetylene reacts with $HCl$?

For the alkyne with formula $C_6H_{10}$,the number of alkynes with acidic hydrogens is $x$ and the number of alkynes with no acidic hydrogens is $y$. $x$ and $y$ are respectively:

Predict the product $(A)$ for the following reaction:
$Ph-C^*(=CHBr)-C_6H_4-Br \xrightarrow{K^+ \, ^-OC(CH_3)_3, \text{ Heat}} (A)$(Note: $C^* = ^{14}C$)