Which of the following on treatment with warm dil. H_2SO_4 in presence of HgSO_4 will give a methyl ketone.

Which of the following on treatment with warm dil. H_2SO_4 in presence

1.	Which of the following on treatment with warm dil. H_2SO_4 in presence of HgSO_4 will give a methyl ketone.
Answer» `Ph-C-=C-CH_3` `CH_3-C-=C-CH_3` SOLUTION :Only `PhC-=C CH_3` does not GIVE a METHYL KETONE