The basic strength of hydroxides of metallic elements can be related to their ionization enthalp...

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The basic strength of hydroxides of metallic elements can be related to their ionization enthalpies. An element which has lower value of ionization enthalpy releases hydroxide ions more easily and behaves as a stronger base. On the otherhand, an element having higher value of ionization enthalpy behaves as a weaker base or may even act as an amphoteric substance (acid as well as base). Now answer the following:

Which of the following compounds is the strongest base?
(a) \( \mathrm{NaOH} \)
(b) \( \mathrm{Mg}(\mathrm{OH})_{2} \)
(c) \( \mathrm{Ca}(\mathrm{OH})_{2} \)
(d) \( \mathrm{KOH} \).
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