Which of the following is called a hydrated proton?
Correct answer: C. Hydronium ion
- A. Oxonium ion
- B. Hydroxonium ion
- C. Hydronium ion
- D. Hydroxyl ion
Explanation
In aqueous solutions, a free proton (H⁺) does not exist on its own. It is strongly attracted to the lone pairs of a water molecule, forming the H₃O⁺ ion, which is known as the hydronium ion.
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About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
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