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KCET2022ChemistryChemical Bonding and Molecular Structure

In oxygen and carbon molecule the bonding is

Options

  1. AO ₂: 2 , 0 ; C ₂: 0 , 2
  2. BO ₂: 1 , 1 ; C ₂: 0 , 2
  3. CO ₂: 0 , 2 ; C ₂: 2 , 0
  4. DO ₂: 1 , 1 ; C ₂: 1 , 1

Correct answer

B. O ₂: 1 , 1 ; C ₂: 0 , 2

Step-by-step solution

The bond order of C ₂ consists of both pi bond because of the presence of the four electrons in two pi molecular orbitals. Whereas in most of the other molecules a double bond is made up of a sigma bond and a pi bond. Thus, option (b) is correct.

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