three-possible-lewis-structures-can-be-drawn-for-scn-as-shown-below-lt-image-gt-

Question

Three possible Lewis structures can be drawn for OCN^– as shown below:

Three Lewis structures for OCN– showing different bonding arrangements.

Based on formal charges, determine the most important resonance structure for OCN^–.

Accepted Answer

Lewis structure of OCN– with a single bond between O and C.

Answer

Lewis structure of OCN– with a triple bond between O and C.

Answer

Lewis structure of OCN– with a double bond between O and C.

Answer

All structures are equivalent.

Three possible Lewis structures can be drawn for OCN– as shown below:Based on formal charges, determine the most important resonance structure for OCN–.