When acetylene is passed through dilute $H_2SO_4$ in the presence of $HgSO_4$,the compound formed is .....

In which reaction is the final product $Ph-C \equiv CH$?

How can propyne and propene be distinguished?

Which of the following carbides will produce propyne on hydrolysis?

One mole of $1, 2-$dibromopropane is reacted with $x$ moles of $NaNH_2$ followed by treatment with ethyl bromide to yield a pentyne. What is the value of $x$?

Acetylene reacts with $HCN$ in the presence of $Ba(CN)_2$ to yield