Question

Methyl acetylene on hydration gives
a) n-propyl alcohol
b) propionaldehyde
c) propylene glycol
d) acetone

Answer 1

Here is your answer-

Ans:- b) propionaldehyde

Methyl acetylene on hydrogen gives propionaldehyde.

Reason:-The hydration of activated alkynes follows Markovnikov's rule, so only acetylene gives an aldehyde.

Hope it helps. ....!

Answer 2

Hey Dear,

◆ Answer - (d) Acetone

Methyl acetylene on hydration gives acetone.

◆ Explanation -

Methyl acetylene is aka propyne (CH3-C≡CH).

Methyl acetylene (CH3-C≡CH) is treated with water in presence of Hg+/H2SO4 to give acetone (CH3-CO-CH3).

CH3-C≡CH + H2O --> CH3-CO-CH3

Hope this helps you solve the query. Thanks for asking..