Name the alkene with molecular formula $C_{10}H_{20}$.

Ethylene reacts with Baeyer's reagent to give

Identify the species $X$ in the reaction: $CH_3-CH=CH_2 + [O] \xrightarrow{\text{conc. acidic } KMnO_4} X + HCOOH$

The reaction $CH_2 = CH_2 + H_2 \xrightarrow[{250 - 300 \, ^oC}]{{Ni}} CH_3 - CH_3$ is known as:

$CH_3-C(CH_3)=CH-CH_3 \xrightarrow{Hg(OAc)_2/EtOH} (A) (90\%)$. The product $(A)$ of the above reaction is:

The reaction of $1-$ethylcyclopentene with $BH_3 / THF$ followed by treatment with $H_2O_2 / NaOH$ produces: