Which of the following reactions forms an ald | vedclass

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

Question

(A) The hydration of alkynes in the presence of $Hg^{+2}/H_3O^{\oplus}$ follows Markovnikov's addition of water to form an enol,which then tautomerize

Vedclass · Accepted Answer

$CH \equiv CH \xrightarrow[333 \ K]{Hg^{+2}/H_3O^{\oplus}}$

Vedclass · Answer

(A) The hydration of alkynes in the presence of $Hg^{+2}/H_3O^{\oplus}$ follows Markovnikov's addition of water to form an enol,which then tautomerizes to a carbonyl compound.$1$. For $CH \equiv CH$ (ethyne),the product is $CH_3CHO$ (acetaldehyde),which is an aldehyde.$2$. For $CH_3 - C \equiv CH$ (propyne),the product is $CH_3 - CO - CH_3$ (acetone),which is a ketone.$3$. For $CH_3 - C \equiv C - CH_3$ (but$-2-$yne),the product is $CH_3 - CO - CH_2 - CH_3$ (butanone),which is a ketone.Therefore,only reaction $A$ produces an aldehyde.

Which of the following reactions forms an aldehyde as a product?

Similar Questions

Which of the following metal carbides gives propyne on hydrolysis?

Which one of the following compounds will react with methyl magnesium iodide?

$CH_3 - CH_2 - C \equiv CH \xrightarrow{HgSO_4, H_2SO_4} A$,the compound $A$ is

Write the following reactions:
$(1)$ Reaction of acetylene with $HCN$.
$(2)$ Hydrogenation of ethyne in the presence of Lindlar catalyst $(Pd, BaSO_4)$.

What is formed when acetylene reacts with alkaline $KMnO_4$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module