Question

Which of the following compound on reaction with $O_3/H_{2}O$ produces Butanoic acid and formic acid ?

• A. 1-Pentyne
• B. 2-Pentyne
• C. Hex-3-yne
• D. Hex-2-yne

Answer 1

The correct option is A 1-Pentyne

Ozonolysis of Alkynes :
The alkynes react with ozone to form ozonides
These ozonides decompose, when reacted with water in the presence of $Zn$, to give diketones.
In the absence of Zn, ozonolysis followed by hydrolysis produces acid.