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

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

Arrange the following in increasing order of boiling point.
$(i)$ methane,butane,propane,pentane,ethane.
$(ii)$ $n$-pentane,neo-pentane,iso-pentane.
$(iii)$ ethane,$2$-methyl propane,propane,$n$-butane.
$(iv)$ $2$-methyl pentane,$2,2$-dimethyl butane,$2,2$-dimethyl propane.

The preparation of ethane by electrolysis of an aqueous solution of potassium acetate is called as:

$A$ certain alkane is mixed with chlorine and irradiated with ultraviolet light. It yields only one monochloroalkane. Which alkane is it?

Propane molecule on chlorination under photochemical conditions gives two dichloro products,$x$ and $y$. Amongst $x$ and $y$,$x$ is an optically active molecule. How many trichloro products (consider only structural isomers) will be obtained from $x$ when it is further treated with chlorine under photochemical conditions?