When $methyl \ bromide$ is heated with $Zn$,it gives:

Given below are two statements :
Statement-$I$ : $2-$methylbutane on oxidation with $KMnO_4$ gives $2-$methylbutan$-2-$ol.
Statement-$II$ : $n-$alkanes can be easily oxidised to corresponding alcohol with $KMnO_4$.
Choose the correct option:

The most important method of preparation of hydrocarbons of lower carbon number is

$(i)$ Give the reaction for the bromination of ethane.
$(ii)$ Is this reaction suitable for obtaining pure bromoethane? Why?
$(iii)$ Give the name of the reaction mechanism and the names of the stages occurring in the reaction.
$(iv)$ Give the reaction for the first stage.
$(v)$ Which type of bond cleavage occurs in the first stage?

Identify the major product $'E'$ in the following reaction sequence:
Cyclohexane $\xrightarrow{Br_2, h\nu} (A)$ $\xrightarrow{Na, D.E.} (B)$ $\xrightarrow{Br_2, h\nu} (C)$ $\xrightarrow{H_2O} (D)$ $\xrightarrow{conc. H_2SO_4} (E)$

How many chiral compounds are possible on monochlorination of $2$-methylbutane?