The false statement for a base is
Correct answer: B. Accept pair of electrons
- A. Accept protons
- B. Accept pair of electrons
- C. Have high pH
- D. Have low pK Value
Explanation
The correct answer is Option B: Accept pair of electrons. This statement is false for a base; it is characteristic of a Lewis acid. Bases are generally defined as substances that can donate an electron pair (Lewis base) or accept a proton (Bronsted-Lowry base).Option A: Accept protons is incorrect because accepting protons is a characteristic of acids, not bases.Option C: Have high pH is incorrect because bases do have a high pH, usually above 7, making this statement true for a base.Option D: Have low pK Value is incorrect because a low pK value is indicative of a strong acid, whereas strong bases have high pK values.
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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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