
Interpretation:
Three resonance structures for thiocyanate ion
Concept Introduction:
Resonance
Resonance is the phenomenon of delocalization of electrons of pi bond (either pi bonding or non-bonding or both) in a molecule such the molecule cannot be represented by a single Lewis structure as the delocalization of electrons gives rise to more than one structure to a same molecule.
Resonance structures
The various structures for a molecule that are formed by delocalization of electrons are termed as resonance structures.
Rules for writing resonance structures
All the resonance structures must have valid and appropriate Lewis structures.
The resonance structure are written and drawn such a way that position of atomic nuclei must not be changed.
Hybridization of atoms in the molecule must not be changed.
The position of bond (electrons) also known as distribution of electrons only must be changed.
All of the atoms involved in resonance and also the atoms that are directly bonded to those atoms must be coplanar (lie in same plane) nearly.

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Chapter 9 Solutions
Connect 1 Semester Access Card for General Chemistry: The Essential Concepts
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- b. H3C CH3 H3O+ ✓ H OHarrow_forward2. Provide reagents/conditions to accomplish the following syntheses. More than one step is required in some cases. a. CH3arrow_forwardIdentify and provide an explanation that distinguishes a qualitative and quantitative chemical analysis. Provide examples.arrow_forward
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