Question

discuss the basic nature of the hydroxide of aluminium and Boron

Answer 1

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Boron and aluminium both are electrophilic in nature due to the presence of an empty p-orbital in case of boron it is 2p orbital which is small in size and less diffuse which make its overlap with oxygens lone pair more effective which in turn increases the acidity of boron hydroxide but incase of aluminium the 3p orbital is involved and is larger and more diffuse and even the Al-O bond is longer these properties additively make oxygens lone pair interaction less effective which results into aluminium hydroxides less acidity. In another example longer bond of LiAlH4 make it more reactive the similar NaBH4

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Answer 2

Answer:

Boron hydroxides are acidic in nature, whereas aluminum hydroxides are amphoteric.

Explanation:

Any substance that tastes sour in water, turns blue litmus paper red, reacts with some metals to liberate hydrogen, reacts with bases to form salts, and promotes chemical reactions is considered an acid.

An amphoteric solution is formed when a substance reacts chemically, either as a base or an acid.