Question

The basic nature of the hydroxides of group 13 (Gr. III B) decreases progressively down the group. True / False.

Answer 1

The hydroxides of alkali metals behave as strong bases due to their low ionisation enthalpies. ... As we move down the group ,the ionisation enthalpy decreases. As a result , the M–OH the bond is more and more easily cleaved and hence the basic strength increases down the group from LiOH to CsOH.