Question

34. Which of the following species cannot act as a Lewis acid? A) K+ B) Mg2+ C) A13+ D) H+ E) H- DIUL UIT DU

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Answer #1

Answer)

  • Lewis acids are species can accept an pair of electron.
  • All K+, Mg2+, Al3+ and H+ can accept an pair of electron so all are lewis acid.
  • H- has an excess electron so it can donate electron pair so it is lewis base.

Therefore, correct answer is E

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