alleryStart learning →In the Bronsted-Lowry model, what is an acid?
AA proton acceptor
BA proton donor
CAn electron donor
DAn atom acceptor
Answer & Solution
Correct answer: B. A proton donor
1. The Bronsted-Lowry model defines acids and bases by what they do with protons.
2. A Bronsted-Lowry acid is a substance that gives away protons, so it is a proton donor.
3. A Bronsted-Lowry base takes up protons instead, so it is a proton acceptor.
4. This definition works outside water as well, which the older Arrhenius definition could not do.
_Source: Siyavula Physical Sciences Grade 11 (Everything Science, CC BY 4.0), Chapter 13: Types of reactions_
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