In the reaction,$H_2C = CH_2 \xrightarrow{\text{cold alkaline } KMnO_4} (A)$. Product $A$ is :

The reaction $CH_2=CH_2 + H_2 \xrightarrow{Ni, 300^{\circ}C} CH_3-CH_3$ is known as:

The energy profile diagram for the dehydration of $2-$butanol using concentrated $H_2SO_4$ is given below. The product $(b)$ of the above reaction is:

How many propenyl radicals are possible from propene?

The major product of the following reaction is

Ethylene reacts with $Br_2$ to give $1, 2$-dibromoethane. Which intermediate is formed that leads to anti-addition?