The reaction of acetylene and propyne with `HgSO_4` in the presence of `H_2SO_4` produces respectively.

The reaction of acetylene and propyne with HgSO_4 in presence of H_2SO_4 produces respectively

Ethyne reacts with dil H_2SO_4 in presence of HgSO_4 to give:

Find the product when Phenyl acetylene reacts with dil. H_2SO_4 in presence of HgSO_4

The product formed by the reaction of propyne with dil. H_(2)SO_(4) in the presence of Hg^(2+) can not be prepared by the following reaction-

When propyne is treated with aqueous H_2SO_4 in the presence of HgSO_4 , the major product is: