The one in which the acceptor atom is of low positive charge, large size and has several outer electrons which can be easily excited is a
Correct answer: C. Soft Acid
- A. Soft Base
- B. Hard Base
- C. Soft Acid
- D. Hard Acid
Explanation
The question describes an acceptor atom that is of low positive charge, large size, and has several outer electrons that can be easily excited. These are characteristic features of a soft acid. Soft acids tend to form more covalent bonds and interact with soft bases. In contrast, hard acids have high positive charge and small size, which does not match the description. Soft and hard bases refer to donor characteristics, not acceptor characteristics.
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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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