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JEE Main2008ChemistryStructure of AtomActual

Which one of the following constitutes a group of the isoelectronic species?

Options

  1. AC ₂²⁻, O ₂⁻, CO , NO
  2. BNO ⁺, C ₂²⁻, CN ⁻, N ₂
  3. CCN ⁻, N ₂, O ₂²⁻, C ₂²⁻
  4. DN ₂, O ₂⁻, NO ⁺, CO

Correct answer

B. NO ⁺, C ₂²⁻, CN ⁻, N ₂

Step-by-step solution

NO ⁺, C ₂²⁻, CN ⁻ and N ₂ all have fourteen electrons.

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