What happens when acetylene is treated with acetic acid in presence of `Hg^(2+)` ions at 353K ?

Explanation

`underset("Acetylene")(HC -= CH)+CH_3COOH underset(353K)overset(Hg^(2+))to underset("Vinyl ethanoate")(H_2C=CHOCOCH_3) underset(CH_3COOH)overset(Hg^(2+))to underset("Vinylidene diacetate")(CH_3-CH(OCOCH_3)_2)`