Which of the following hydrocarbons forms a salt?

Provide the primary information about alkynes.

The major organic compound formed by the reaction of $1, 1, 1-$trichloroethane with silver powder is:

What will be $Y$ in the following reaction?
$C_2H_2$ $\xrightarrow{O_3} X$ $\xrightarrow{Zn/CH_3COOH} Y$

$A$ compound is treated with $NaNH_2$ to give a sodium salt. Identify the compound.

The reaction sequence is as follows:
$CH(COOK)=CH(COOK)_{(aq)}$ $\xrightarrow{\text{electrolysis}} X$ $\xrightarrow[Hg^{2+}]{dil. H_2SO_4} Y$; $Y$ is