MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryGOCResonance or Mesomeric Effect

Which of the following is least stable?

A.I

B.II✓ Correct

C.III

D.None

Explanation

In I and III , Nitrogen holds negative charge in it is resonance structures. Negative charge on most electronegative atom is more stable. But in II it is not possible. Hence, II is least stable. Option b is correct.

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