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99 Percentile Qs Bank for JEE MainChemistryChemical Bonding and Molecular Structure

Group the molecules/ions according to bond order.

Options

  1. A( O ₂²⁻, Li ₂, O ₂²⁺ ) ( F ₂, ~N ₂, He ₂²⁺ )
  2. B( F ₂, O ₂²⁺, N ₂ ) ( O ₂²⁻, He ₂²⁺, Li ₂ )
  3. C( O ₂⁻, Li ₂, ~F ₂, He ₂²⁺ ) ( N ₂, O ₂²⁺ )
  4. D( Li ₂, ~F ₂, O ₂²⁺ ) ( N ₂, O ₂²⁻, He ₂²⁺ )

Correct answer

C. ( O ₂⁻, Li ₂, ~F ₂, He ₂²⁺ ) ( N ₂, O ₂²⁺ )

Step-by-step solution

Bond order of the group aligned & O ₂⁻ has =1, Li ₂ has =1 & ~F ₂ has =1, He ₂²⁺ has =1 & aligned Similarly, N ₂ has B. O =3 and O ₂²⁺ has B.O =3 , i.e. all the species ( O ₂⁻ Li ₂, ~F ₂ . and . He ₂²⁺ ) has B . O =1 and both the numbers ( N ₂ . and . O ₂²⁺ ) has B.O ' 3 '. Hence, these can be grouped together.

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