$2-$Hexyne can be converted into $trans-2-$hexene by the action of:

Maximum bond energy of $C-H$ bonds is found in the compound:

Give the structure,formula and names of $2$ to $4$ carbon alkynes.

The reagent needed for converting $Ph-C \equiv C-Ph$ to trans-stilbene is:

$A$ hydrocarbon $X$ with molecular formula $C_4H_6$ decolourises bromine water and forms a white precipitate in ethanolic $AgNO_3$ solution. Treatment of $X$ with $HgCl_2$ in aqueous $H_2SO_4$ produces a compound,which gives a yellow precipitate when treated with $I_2$ and $NaOH$. The structure of $X$ is

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