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

The product $(P)$ is:

The correct order of rates of addition of $Br_2/\text{water}$ to the following alkenes is:
[$A$] $CH_2=CH_2$
[$B$] $CH_2=CH-NO_2$
[$C$] $CH_3-CH_2-CH=CH_2$
[$D$] $CH_3-CH=CH_2$

What is the major product formed when propene reacts with $ICl$?

Identify the reagent$(s)$ $A$ and condition$(s)$ for the reaction shown in the image:

cis-$2$-butene $\xrightarrow{HBr/\text{Peroxide}}$ product; Product of the reaction is: