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AP EAMCET202316 May 2023Evening ShiftChemistryChemical Bonding and Molecular StructureActual

The correct order of C - O bond length in CO , CO ₃²⁻ , CO ₂ is

Options

  1. ACO < CO ₃²⁻ < CO 2
  2. BCO ₃²⁻ < CO ₂ < CO
  3. CCO < CO ₂ < CO ₃²⁻
  4. DCO ₂ < CO ₃²⁻ < CO

Correct answer

A. CO < CO ₃²⁻ < CO 2

Step-by-step solution

O = C = O ; ^ C O ^ The bond length is smallest for the C O bond due to strong triple bond. Among CO ₃²⁻ and CO ₂, CO ₃²⁻ has the smaller C - O bond length due to resonance stabilization that makes the bond stronger.

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