In the reaction of $1$-bromo-$3$-chlorocyclobutane with two equivalents of sodium in ether,the major product is

Identify the total number of monochlorinated products formed when $2$-methylpentane reacts with $Cl_2 / hv$.

What is the main component of $LPG$?

$A$ hydrocarbon $A$ $(V.D. = 36)$ forms only one monochloro substitution product. $A$ will be:

The most volatile alkane is

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