Identify strongest conjugate base among the following:
Correct answer: A. OH-
- A. OH-
- B. RCCO-
- C. -OR
- D. PhO-
Explanation
Option Ais correct.Hydroxide ion is the conjugate base of water (H2O).Water is a weak acid (in pure form) with a pKa of about 15.7. As a result, the hydroxide ion (OH-) is a strong conjugate base. Remember: The more a cmpound is strong acid, the more its conjugate base is weak.
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About Carboxylic Acids
Carboxylic acids are named and studied through the combined effects of the carbonyl and hydroxyl groups, their preparation, acidity and hydrogen bonding. Reactions include neutralisation, esterification, reduction and conversion into acid chlorides, anhydrides, esters and amides, with emphasis on how these derivatives interconvert.
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