Chemistry · Equilibrium involving chemical processes: Law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance, the significance of Delta G and Delta G° in chemical equilibrium

Which is not a reversible reaction?

Which is not a reversible reaction?

  • A. Base-promoted ester hydrolysis
  • B. Claisen condensation
  • C. Acid catalyst ester hydrolysis
  • D. Acetal formation

Step-by-step solution

Base-promoted ester hydrolysis (saponification) is irreversible because the carboxylate ion product is stable and does not react with alcohol to reform the ester. In contrast, acid-catalyzed ester hydrolysis, acetal formation, and Claisen condensation are reversible under typical conditions.
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