Ethyne on reaction with dil. H_2SO_4 and Hg(I | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The reaction of ethyne with dilute $H_2SO_4$ in the presence of $Hg(II)$ salts (like $HgSO_4$) is a hydration reaction. The reaction proceeds as f

Vedclass · Accepted Answer

Ethanal

Vedclass · Answer

(B) The reaction of ethyne with dilute $H_2SO_4$ in the presence of $Hg(II)$ salts (like $HgSO_4$) is a hydration reaction. The reaction proceeds as follows: $CH \equiv CH + H_2O$ $\xrightarrow{40\% \ H_2SO_4, \ 1\% \ HgSO_4} [CH_2 = CH - OH] 	ext{ (vinyl alcohol)} [CH_2 = CH - OH]$ $\xrightarrow{	ext{tautomerization}} CH_3 - CHO 	ext{ (ethanal)}$ Thus,the final product is ethanal.

Ethyne on reaction with dil. $H_2SO_4$ and $Hg(II)$ gives:

Similar Questions

Which of the following would be produced when acetylene reacts with $HCl$?

One mole of $1, 2-$dibromopropane is reacted with $x$ moles of $NaNH_2$ followed by treatment with ethyl bromide to yield a pentyne. What is the value of $x$?

Identify the compound $(Z)$ in the following reaction sequence: $CH_3-CH(Br)-CH_2Br$ $\xrightarrow{alc. KOH, \Delta}$ $\xrightarrow{NaNH_2}$ $\xrightarrow{H_2O, Hg^{2+}, H^+} (Z)$

Which of the following reactions will yield $2, 2-$dibromopropane?

Write the following reactions:
$1$. Complete combustion of ethyne in the presence of air.
$2$. Reaction of propyne with alkaline $KMnO_4$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module