Multiple choice

Which of the following ions is isoelectronic with CO? A. N2 B. O2+ C. CN- D. NO+ Choose the correct code given below:

  1. A, B and C

  2. B, C and D

  3. C, D and A

  4. C, B, C and D

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

⇒ CN-, NO+ and N2 are isoelectronic with CO because each has two nuclei and 10 valence electrons, with each atom considered to have 5 of them (a lone-pair and a triple-bond).

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