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Which of the following pairs contains a conjugate acid-base pair?

Hydrochloric acid and sodium hydroxide
Sodium cyanide and hydrocyanic acid
sodium bromide and bromous acid

User RenDishen
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1 Answer

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Remember that a conjugate acid-base pair will differ only by one proton.
None of the options you listed are conjugate acid-base pairs as none of them differ only by one proton (or H⁺)
An example of a conjugate acid-base pair would be NH₃ and NH₄⁺NH₃ + H₂O --> NH₄⁺ + OH⁻NH3 is the base, and NH₄⁺ is the conjugate acid
User Marcin Szymaniuk
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