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Question

which is stronger base naoh and koh.explain

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Solution

The basic character of hydroxides is due to the low ionisation enthalpies of alkali metals. Because of low ionisation energies the M-O bond in MOH is weak and it can cleave to give OH- ions in the solution. (M = metal)
Since, the ionsisation enthalpy decreases down the group, therefore the basic strength of hydroxides increases. Hence, KOH is stronger base than NaOH.

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