Question

The hydroxides of group 2nd metals are less basic those of group 1st explain?​

Answer 1

Answer:

The hydroxides of alkaline Earth metals are more ionic than the hydroxides of alkali metals. It is because the hydroxide of alkaline Earth metals have greater lattice enthalpy than hydroxides of alkali metals which make the hydroxides of alkali metals less ionic than hydroxides of alkaline Earth metals.

As hydroxides of alkali metals are less ionic so it'd be easier for such compounds to dissociate in water than hydroxides of alkaline Earth metals. Since, hydroxide of alkali metals metals can dissociate more easily into cation and hydroxide ion makes these compounds more basic.

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