The major product of the following reaction is:

What is formed when acetylene reacts with hypochlorous acid?

Which of the following compounds does not release $CO_2$ on oxidative ozonolysis?

In the following reaction,$Z$ is known as: $CH \equiv CH \xrightarrow{Z} CH_3CHO$

$A$ hydrocarbon $X$ with molecular formula $C_4H_6$ decolourises bromine water and forms a white precipitate in ethanolic $AgNO_3$ solution. Treatment of $X$ with $HgCl_2$ in aqueous $H_2SO_4$ produces a compound,which gives a yellow precipitate when treated with $I_2$ and $NaOH$. The structure of $X$ is

The product obtained in this reaction is: