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  • Ferric Hydroxide: Understanding its Acid-Base Properties
    Ferric hydroxide (Fe(OH)₃) is not amphoteric.

    Amphoteric substances can act as both an acid and a base.

    * As an acid: They donate protons (H⁺)

    * As a base: They accept protons (H⁺)

    While Fe(OH)₃ can react with acids to form salts and water, it does not exhibit basic properties by accepting protons.

    Here's why:

    * Reaction with acids:

    Fe(OH)₃(s) + 3HCl(aq) → FeCl₃(aq) + 3H₂O(l)

    * No reaction with bases:

    Fe(OH)₃ does not readily react with bases to form soluble complexes or release hydroxide ions (OH⁻).

    Therefore, ferric hydroxide is not amphoteric.

    However, it is important to note that Fe(OH)₃ can exist in different forms, such as FeO(OH) (goethite) or Fe₂O₃·xH₂O (ferrihydrite). These forms might exhibit some amphoteric behavior depending on the specific conditions.

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