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AP EAMCET20228 Jul 2022Morning ShiftChemistryChemical Bonding and Molecular StructureActual

As per molecular orbital theory the pair of molecules which do not exist is

Options

  1. ALi ₂, ~B ₂
  2. BHe ₂, C ₂
  3. CBe ₂, C ₂
  4. DBe ₂, Ne ₂

Correct answer

D. Be ₂, Ne ₂

Step-by-step solution

array |l|c|c|c|c| Molecules & array c Total no. of I array & array c e in bonding orbitals array & array c e in anti- bonding orbital array & array c Bond order array (a) He ₂ & 4 & 2 & 2 & 0 (b) Be ₂ & 8 & 4 & 4 & 0 (c) Li ₂ & 6 & 4 & 2 & 1 (d) B ₂ & 10 & 6 & 4 & 1 (e) C ₂ & 12 & 8 & 4 & 2 (f) Nee ₂ & 20 & 10 & 10 & 0 array

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