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      Question

      Which of the following is NOT a

      base?
      A KOH Correct Answer Incorrect Answer
      B NHâ‚„ OH Correct Answer Incorrect Answer
      C NaOH Correct Answer Incorrect Answer
      D Câ‚‚Hâ‚… OH Correct Answer Incorrect Answer

      Solution

      Among the given options, C₂H₅OH (ethanol) is NOT a base.  The other substances are bases: KOH- (potassium hydroxide) is a strong base. NH₄OH -(ammonium hydroxide) is a weak base. NaOH- (sodium hydroxide) is a strong base.

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