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Which of the following is a false statement?

  • A.As bond order increases the strength of the bond increases
  • B.Bond order is proportional to the bond length
  • C.Molecules with negative bond order are highly unstable
  • D.Bond order is inversely proportional to the bond length

Answer: B

The false statement is that bond order is proportional to bond length.

The relation is inverse: the higher the bond order, the more electron density holds the nuclei together and the shorter and stronger the bond. Compare C–C at 154 pm, C=C at 134 pm and C≡C at 120 pm.

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