Base is acceptor of
Correct answer: B. Proton
- A. OH⁻ ion
- B. Proton
- C. Electron pair
- D. All of these
Explanation
In the context of the Bronsted-Lowry theory, a base is defined as a substance that accepts protons (H⁺ ions). Therefore, the correct answer is Option B: Proton. Option A is incorrect because OH⁻ ions are not accepted by bases; instead, bases can produce OH⁻ ions in aqueous solutions. Option C is incorrect as it refers to the Lewis definition of bases, which involves donating electron pairs, not accepting protons. Option D is incorrect because a base does not accept all of these, as it specifically accepts protons according to the Bronsted-Lowry definition.
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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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