Which of the Following Resonance Structures for OCN⁻ Will Contribute

question 66

Multiple Choice

Which of the following resonance structures for OCN⁻ will contribute most to the correct structure of OCN⁻?

• A) O(2 lone pairs) C N (2 lone pairs)
• B) O(1 lone pair) C-N(3 lone pairs)
• C) O(1 lone pair) C(2 lone pairs) N(1 lone pair)
• D) O(3 lone pairs)-C N(with 1 lone pair)
• E) They all contribute equally to the correct structure of OCN⁻.

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