Heating of alkanes with fuming sulphuric acid or oleum at high temperature,which forms sulphonic acid,is called

Which alkane is secreted by cockroaches to attract the opposite gender of its species?

Identify the final product $C$ in the following reaction sequence:
$Br-(CH_2)_5-Br$ $\xrightarrow{Na, \text{D.E.}} A$ $\xrightarrow{Br_2, \Delta} B$ $\xrightarrow{\text{alc. KOH}, \Delta} C$

How many isomeric vicinal-dihalides are possible for the compound having molecular formula $C_3H_6Cl_2$?

$2-$methylpropane on monochlorination under photochemical conditions gives:

Among the given pairs,in which pair does the first compound have a higher boiling point than the second?