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AP EAMCET202021 Sep 2020Morning ShiftChemistryChemical Bonding and Molecular StructureActual

The bond stability of ( N ₂, ~N ₂⁻ )and ( N ₂²⁻ ) varies as

Options

  1. A( N ₂ < N ₂⁻ < N ₂²⁻ )
  2. B( N ₂⁻ < N ₂ < N ₂²⁻ )
  3. C( N ₂²⁻ < N ₂⁻ < N ₂ )
  4. D( N ₂⁻ < N ₂²⁻ < N ₂ )

Correct answer

C. ( N ₂²⁻ < N ₂⁻ < N ₂ )

Step-by-step solution

Stability of a molecule is related with bond order as: Stability ( ) Bond order Bond order of ( N ₂, ~N ₂⁻ )and ( N ₂⁻² ) are 3, 2.5 and 2 respectively. Therefore, the bond stability order is ( N ₂⁻² < N ₂⁻ < N ₂ ). Hence, the correct option is (c).

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