A group of acids arranged in order of decreasing acidity is: HNO₃ CH₃COOH C₆H₅OH H₂O HC$\equiv$CH What is the arrangement of the conjugate bases of these compounds in decreasing order of basicity? A)NO₃^- CH₃COO^- C₆H₅O^- OH^- HC$\equiv$C^- B)CH₃COO^- C₆H₅O^- NO₃^- OH^- HC$\equiv$C^- C)C₆H₅O^- NO₃^- HC$\equiv$C^- OH^- CH₃COO^- D)HC$\equiv$C^- OH^- C₆H₅O^- CH₃COO^- NO₃^- E)No prediction of relative base strength is possible.

Question

A group of acids arranged in order of decreasing acidity is: HNO₃ > CH₃COOH > C₆H₅OH > H₂O > HC$\equiv$CH What is the arrangement of the conjugate bases of these compounds in decreasing order of basicity? A)NO₃^- > CH₃COO^- > C₆H₅O^- > OH^- > HC$\equiv$C^- B)CH₃COO^- > C₆H₅O^- > NO₃^- > OH^- > HC$\equiv$C^- C)C₆H₅O^- > NO₃^- > HC$\equiv$C^- > OH^- > CH₃COO^- D)HC$\equiv$C^- > OH^- > C₆H₅O^- > CH₃COO^- > NO₃^- E)No prediction of relative base strength is possible.

Quizplus · Accepted Answer

The basicity of a conjugate base is inversely related to the acidity of its parent acid. Therefore, the order of basicity of the conjugate bases is the reverse of the acidity order of the acids.

A Group of Acids Arranged in Order of Decreasing Acidity ≡\equiv≡

A Group of Acids Arranged in Order of Decreasing Acidity $\equiv$