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As per your syllabus, in the LEWIS concept (G.N. Lewis, 1923), a base is defined as which kind of species?
AAn electron-pair acceptor
BAn electron-pair donor
CA proton acceptor
DA proton donor
Answer & Solution
Correct answer: B. An electron-pair donor
Your syllabus: Lewis — acid accepts electron pair
base donates electron pair.
BF₃ + NH₃ → BF₃·NH₃ is the canonical example.
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