$C_2H_2 \mathop {}$ ${\xrightarrow{{HgSO_4, H_2SO_4}}} A$ $\xrightarrow{{[O]}} B$. $B$ is

The product $(B)$ of the reaction is:
$CH(CO_2H)=CH(CO_2H)$ $\xrightarrow[2 \ mole]{NaOH} (A)$ $\xrightarrow{\text{electrolysis}} (B)$

When $23 \ g$ of $Na$ reacts with $1 \ mole$ of propyne,how many moles of $H_2$ gas will be released?

In which of the following compounds is the bond length between an $sp^3$ hybridized carbon and an adjacent carbon atom the shortest?

The reaction $R-C \equiv C-R \xrightarrow{H_2 / \text{Lindlar's catalyst}}$ gives the major product as ..............

The reaction of calcium carbide with water produces.......