Which is the strongest base among the following?

1. $\mathrm{H}_3 \mathrm{CNH}_2$
2. 
   
3. 
   
4. 
   

Solution

The species having more lone pair of electrons for donation are strong base. In case of $\mathrm{CH}_3 \mathrm{NH}_2$, lone pair of electrons on $\mathrm{N}$-atom is available for donation. Hence, it is most basic. Order of basic nature of the given compounds is

Asked in: JEE-TOPICTESTS-CHEMISTRY

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