1.

When propyne is treated with aqueous H_(2)SO_(4) in the presence of HgSO_(4), the major product is :

Answer»

propanal
propyl hydrogen sulphate
ACETONE
propanol

Solution :Alkynes undergoes Markovnikov's ADDITION of water in the presence of `H_2SO_4 // HgSO_4 `:
` CH_3- C -= C - H + H_2O underset(HgSO_4) OVERSET(H_2SO_4)to underset("UNSTABLE cool")([CH_3-overset(OH)overset(|)C= CH_2]) IFF underset("acetone")(CH_3-overset(O)overset(||)C-CH_3`


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