00:01
Hello students, a living group ability depends on whether the group is weak base or not.
00:08
A weak base act as a good living group.
00:12
The second criteria is size.
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A group having large size will act as a good living group.
00:20
The first question is h2o, oh - and nh2-.
00:26
As oh and nh2 have a negative charge, they are stronger base than h2o as it does not have any negative charge.
00:36
Therefore, h2o is the weak base.
00:39
As weak bases act as good living group, h2o will be a good living group as compared to both.
00:48
Also, as oxygen is highly electronegative, the negative charge will be dispersed in oh and hence not available for donating.
00:59
Whereas, as compared to nh2 - where nitrogen is less electronegative, can share the negative charge and can act as a strong base...