The alkene $R-CH=CH_2$ reacts readily with $B_2H_6$ and forms the product $B$,which on oxidation with alkaline hydrogen peroxide produces:

$A$ benzene derivative did not produce a white precipitate with ammoniacal silver nitrate solution (Tollens' reagent) but decolorized cold dilute alkaline $KMnO_4$ solution (Baeyer's reagent). The compound is:

Classify the types of chemical reactions that alkenes undergo and provide examples for each.

Compound $(A)$ is formed by the reaction of cyclooctatetraene with $(3 \text{ mole})$ of $CH_2I_2$ in the presence of $Zn/Cu$. Identify compound $(A)$.

In the reaction sequence $CH_3CH = CHCH_3$ $\xrightarrow{O_3} A$ $\xrightarrow{H_2O/Zn} B$,the alkene forms product $B$. What is product $B$?

Alkene $(A)$ will be:
$\mathop A\limits_{(\text{alkene})} \xrightarrow{RCO_3H, H_2O} \text{Racemic mixture}$
$\mathop A\limits_{(\text{alkene})} \xrightarrow{\text{Cold dil. } KMnO_4} \text{Meso-compound}$