Which substance is a Lewis acid but not a Bronsted-Lowry acid? A) acetic acid B) NH₄⁺(aq) C) HCO₃^-(aq) D) CO₂ E) CO₃^2-

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A substance that acts as a Lewis acid accepts a pair of electrons, but it does not necessarily donate a proton, which is the characteristic of a Bronsted-Lowry acid. Among the given options, only D (COS) is a Lewis acid but not a Bronsted-Lowry acid.

Which Substance Is a Lewis Acid but Not a Bronsted-Lowry