Which of the following shows the correct order of decreasing basic strength in benzene medium?

Options

A. `CH_(3)NH_(2)gt (CH_(3))_(3)Ngt(CH_(3))_(2)NH gt NH_(3)`
B. `(CH_(3))_(2)NHgt NH_(3)gt (CH_(3))_(3)NgtCH_(3)NH_(2)`
C. `(CH_(3))_(3)Ngt (CH_(3))_(2)NHgt CH_(3)NH_(2)gtNH_(3)`
D. `(CH_(3))_(2)NHgt (CH_(3))_(3)N Ngt NH_(3)gt CH_(3)NH_(2)`

Answer

C

Explanation

In the gas phase as well as nonpolar solvents, the basic strength of nitrogeneous bases is decided by the availability of lone pair of electrons on the `N` atom which increases with the increase in the number of electron releasing methyl groups.