The most nucleophilic nitrogen is in:

Which one of the following has the most nucleophilic nitrogen ?

Which one of the following has the most nucleophilic nitrogen?

The most acidic proton and the strongest, nucleophilic nitrogen in the following compound respectively, are

The most acidic proton and the strongent nucleophilic nitrogen in the following compound respectively are

The most nucleophilic species among the following in aprotic solvent

Most reactive towards nucleophilic addition is

The most reactive of the following towards nucleophilic addition is