Question

The $ p{{K}_{a}} $ of phenol is 10. Which of the following bases will deprotonate phenol Completely? $ NaN{{H}_{2}}(p{{K}_{a}}ofN{{H}_{3}}=35),NaOH(p{{K}_{a}} $ of $ {{H}_{2}}O=16), $ $ Na{{H}_{2}}(p{{K}_{a}}ofNH_{4}^{+}=10), $ $ NaOOCC{{H}_{3}} $ $ (p{{K}_{a}}ofC{{H}_{3}}COOH=5) $

• A. $ NaN{{H}_{2}} $
• B. $ N{{H}_{3}} $
• C. $ NaN{{H}_{2}} $ and $ NaOH $
• D. $ N{{H}_{3}} $ and $ NaOCOC{{H}_{3}} $

Answer 1

Answer: (C)

Bases whose $ p{{K}_{a}} $ is greater than 10 can deprotonate phenol.