When acetylene is passed through dil.`H_(2)SO_(4)` in the presence of `HgSO_(4)`. The compound formed is:

When acetylene is passed through dil. H_(2)SO_(4) in the presence of the HgO_(4) , the compound formed is

When acetylene is passed through di. H_(2)SO_(4) in presence of HgSO_(4) , the compound formed is

When acetylene is passed through dil . H_2SO_4 in the presence of HgSo_4 the compound formed is :

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

When acetylene gas is passed through dilute H_(2)SO_(4) in presence of Hg^(2+) ions, compound A is formed, which then undergoes rearrangement to give the product B. Write the complete equation and name the products A and B.

Propyne is treated with aquesous H_(2)SO_(4) in the presence of HgSO_(4) . The product formed is