Question

X is formed by the partial replacement of hydroxyl groups of a diacidic base by an acidic radical. The number of ionizable hydroxyl groups in X is _________.​

Answer 1

Answer:

X can be formed by the ‘partial replacement of hydroxyl groups’ of a di-acidic base by an ‘acidic radical’. The No. of ‘ionisable hydroxyl groups’ in X is one.

Explanation:

Acidity of bases:

• The acidity of bases is completely depends on the number of hydrogen atoms are reacts with acids completely.
• One base molecule produce two hydroxyl groups in the aqueous medium called di-acidic base.

Examples: Calcium hydroxide and Copper hydroxide.

• The ‘partial replacement of hydroxyl groups’ of a ‘di-acidic base’ by an ‘acidic radical’ which is monobasic.

Answer 2

X is formed by the partial replacement of hydroxyl groups of a diacidic base by an acidic radical. The number of ionizable hydroxyl groups in X is one.

• A diacidic base gives two hydroxide ions, that is, OH ions when one of its molecules undergo complete ionization.
• Some examples of diacidic bases are barium hydroxide and calcium hydroxide.
• An anion that has a negative charge is called the acidic radical, while a cation that has a positive charge is called the basic radical.
• The uncharged group in a molecule, that can dissociate by producing ions or electrons.