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NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice

Compare bond lengths (x and y) for the following molecules

Options

  1. Ax > y
  2. By > x
  3. Cx = y
  4. DNone of these

Correct answer

B. y > x

Step-by-step solution

x = 153.9 pm y = 154.5 pm Lone pair has more s%-character than the multiple bond, hence orbital having lone pair has more s%-character and other orbital has less s%-character. s% decreases bond length increases.

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