Question

Ethyne on treatment with two reagents separately gives different products. One of the products belongs to same class of compounds. Identify the reagents.
(a) $O_3+Zn$ dust (b) $H_2{SO}_4+Hg{SO}_4$
(c) Alkaline $KMn{O}_4$ (d) $HOCl$

• A. $a$ and $d$
• B. $b$ and $c$
• C. $a$ and $c$
• D. $b$ and $d$

Answer 1

The correct option is C $a$ and $c$

Ethyne on ozonolysis gives $ozonide$ which on further hydrolysis gives $carboxylicacids$. . With reaction of $H_{2}S{O}_4/HgS{O}_4$ produce $Acetaldehyde$. With $alkalineKMn{O}_4$ produce $Oxalicacid$. With $HOCl$ it gives $dichloroethanal$. Thus the reagents are $O_3$ and $KMn{O}_4$.