The protonation of carboxylic acid is:
Correct answer: B. Option B
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Explanation:During protonation, the double bond between the carbon and oxygen is broken. As a result, a long pair is present on the oxygen atom as a result hydrogen ion can form the bond with it. Thus the correct option is B.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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About Bronsted-Lowry and Lewis Concepts
The Brønsted-Lowry concept defines acids as proton donors and bases as proton acceptors, producing conjugate acid-base pairs. The Lewis concept extends the idea to electron-pair acceptors and donors, so compounds such as BF3 and NH3 can be treated as acid and base even without proton transfer, unlike the Arrhenius definition.
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