Lux-Flood concept is a dono-acceptor system of
Correct answer: D. Oxide ion
- A. Proton
- B. Electron pair
- C. Neutron
- D. Oxide ion
Explanation
The Lux-Flood concept defines acids and bases in terms of their ability to donate or accept oxide ions (O2-). According to this concept, a Lux-Flood acid is a substance that donates oxide ions, while a Lux-Flood base is one that accepts them. This is particularly applicable in high-temperature reactions involving metal oxides. The other options are incorrect as they refer to different acid-base theories: protons are involved in the Brønsted-Lowry theory, electron pairs in the Lewis theory, and neutrons do not play a role in any acid-base concepts.
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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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