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Which of the following is not a pair of a Lewis acid and a Lewis base?

Options

  1. AH ⁺, ( C ₂ H ₅ )₂ O
  2. BH ₂ O , AlCl ₃
  3. CFe ³⁺, CO
  4. DSiF ₄, BF ₃

Correct answer

D. SiF ₄, BF ₃

Step-by-step solution

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