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Lewis Acid and Base quiz #1

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Terms in this set (11)

  • Which is a characteristic of a Lewis base?
    A Lewis base has lone pairs of electrons and/or a negative charge, allowing it to donate an electron pair.
  • What defines a Lewis acid?
    A Lewis acid is a species that can accept an electron pair, such as H+ ions, metal cations, or molecules with a central atom having less than 8 valence electrons (e.g., BF3, AlBr3, BeCl2).
  • What is the definition of a Lewis base?
    A Lewis base is an electron pair donor.
  • What defines a Lewis base?
    A Lewis base is any compound with lone pairs of electrons or a negative charge, such as NH3, H2O, or OH−.
  • What must a species have to act as a Lewis base?
    To act as a Lewis base, a species must have lone pairs of electrons and/or a negative charge.
  • Which compound is not a Lewis acid?
    A compound that cannot accept an electron pair, such as CH4 (methane), is not a Lewis acid.
  • Which type of substance is an electron-pair donor?
    An electron-pair donor is a Lewis base.
  • Classify each species as a Lewis acid or a Lewis base.
    Lewis acids: H+, BF3, AlBr3, BeCl2, Zn2+. Lewis bases: NH3, H2O, OH−, Cl−.
  • Identify the Lewis acid and Lewis base in each of the reactions.
    In a reaction, the Lewis acid is the electron pair acceptor (e.g., BF3), and the Lewis base is the electron pair donor (e.g., NH3).
  • What is the definition of a Lewis acid in chemistry?
    A Lewis acid is a substance that accepts an electron pair.
  • According to Gilbert Lewis, what characterizes a Lewis acid?
    A Lewis acid is characterized as an electron pair acceptor.