The product obtained by the vapor phase nitration of propane is:

Identify the major product formed when the following compound reacts with $NBS$ ($N$-Bromosuccinimide):
$CH_3-C_6H_4-CH(CH_3)-C_6H_4-CH_2CH_3 \xrightarrow{NBS} \text{Major Product}$

In the alkane $CH_3-CH_2-C(CH_3)_2-CH_2-CH(CH_3)_2$,identify $1^{\circ}$,$2^{\circ}$,and $3^{\circ}$ carbon atoms and give the number of $H$ atoms bonded to each one of these.

If per $H$-atom selectivity for chlorination is $3^o : 2^o : 1^o = 5 : 3.8 : 1$,then identify the correct product ratio for the following reactions.

The chlorination of ethane is an example of which of the following types of reactions?

Arrange the halogens $F_2, Cl_2, Br_2, I_2$ in order of their reactivity with alkanes.