In the following reaction,$Z$ is known as: $CH \equiv CH \xrightarrow{Z} CH_3CHO$

The number of moles of protons which can be easily given by $1 \ mole$ of $but-1-yne$ is:

What is the final product,$C$ of the following reaction sequence?
$CH_3CH_2-C \equiv CH$ $\xrightarrow[2. CH_3CH_2Br]{1. NaNH_2} A$ $\xrightarrow{Na, NH_3(liq.)} B$ $\xrightarrow{Br_2, CH_2Cl_2} C$

The reaction of $2-$butyne with $HgSO_4/H_2SO_4$ yields.............

Ethylidene dichloride is obtained by the reaction of excess of $HCl$ with

The number and type of bonds between two carbon atoms in $CaC_2$ are