Q. Predict the correct intermediate and product in the following reaction : $H_3C-C\equiv CH \xrightarrow[HgSO_4]{H_2O,\ H_2SO_4}$ intermediate (A) $\rightarrow$ product (B)
A) A : $H_3C-C(SO_4)=CH_2$ ; B : $H_3C-CO-CH_3$
B) A : $H_3C-C(OH)=CH_2$ ; B : $H_3C-C(SO_4)=CH_2$
C) A : $H_3C-CO-CH_3$ ; B : $H_3C-C\equiv CH$
D) A : $H_3C-C(OH)=CH_2$ ; B : $H_3C-CO-CH_3$
Explanation
[Solution] Markovnikov hydration gives the enol $CH_3C(OH)=CH_2$, which tautomerises to acetone. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.