Chemical Bonding and Molecular Structure

Chemical Bonding and Molecular Structure

Question

In which of the following pairs of molecules/ions, both the species are not likely exist?

  • straight H subscript 2 superscript plus comma space He subscript 2 superscript 2 minus end superscript
  • straight H subscript 2 superscript minus comma space He subscript 2 superscript 2 minus end superscript
  • straight H subscript 2 superscript 2 plus end superscript comma He subscript 2
  • straight H subscript 2 superscript minus comma space He subscript 2 superscript 2 plus end superscript

Answer

C.

straight H subscript 2 superscript 2 plus end superscript comma He subscript 2

species which have zero or negative bond order does not exist.

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