Like a strong acid, a strong Arrhenius base is a completely or almost completely ionized compound.
Therefore, the concentration of hydroxide ions in a strong primary
reaction is the same as the concentration of undissociated alkali.
Common examples of stable Arrhenius bases are alkali metal and alkaline
earth metal hydroxides, including NaOH and Ca(OH)2. Very stable base can
deprotonate weakly acidic CH groups in the absence of water.
List of bases Stronger than OH- ion :-
H- , O -2 , (O2)2- , O2- , N-3 , P-3 , As-3 , Sb-3 , Bi-3 , NH-2 , NH2-
These are important and you have to learn but these are difficult to learn quick, here is a trick to help you in learning these bases. Trick is very easy and by that you can learn these in seconds!
TRICK :-
Hari Oye Pele Sole, News Paper Aaj Sab Bikenge India & America mein
( हरि औए पीले सोले , न्यूज़ पेपर आज सब बिकेंगे इंडिया & अमेरिका मे।)
ION NAME TRICK
H- Hydride Hari
O -2 Oxide Oye
(O2)2- Peroxide Pile
O2- Super Oxide Sole
N-3 Nitride News
P-3 Phosphide Paper
As-3 Aresnide Aaj
Sb-3 Stebenide Sub
Bi-3 Bismuthide Bikega
NH-2 Imide India &
NH2- Amide America mein