Concept explainers
Interpretation: The important resonances of molecules mentioned below should be drawn.
Concept introduction:When one single structure is unable to describe all the properties of single molecule, a phenomenon called resonance comes into play. This arises when two or more than two Lewis structures are possible for one molecule. All such structures are called resonating structures and have same placement of atoms in them but these have different locations of bond pairs and lone pairs. The resonating structures are inter-convertible with each other. The resultant of all the resonating or contributing structures is called the resonance hybrid.
Rules to form resonance structure are as follows:
1. Use arrow types 1 and 2 for resonance structure of anions in movement of negative charge.Arrow type 1 shows the movement of lone pair toward adjacent atom and then converted into
2. Use only arrow type 3 to move a positive charge for resonance structure of cations.Arrow type 3 is used to move
3. The sigma bond should not be broken. Any atom must not move from its place and total number of electrons must be same in all resonance structures.
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Organic Chemistry: A Guided Inquiry
- Draw all the possible resonance structures for the nitrite ion. How many resonance structures can you have in total for nitrite?arrow_forwardDraw a resonance structure for each ion.arrow_forwardWhen drawing a resonance hybrid, how is the relative significance of individual resonance structures represented? O The entire resonance structure will be drawn larger or smaller, depending on its significance. O There is no way to note the significance of a resonance structure in atdrawing. The most significant resonance structure is circled. The partial charges will be written larger or smaller, depending on the significance of the resonance structure. Save for Later Submisarrow_forward
- Which of the following species is a valid resonance structure of A? Usecurved arrows to show how A is converted to any valid resonancestructure. When a compound is not a valid resonance structure of A,explain why not.arrow_forwardDraw two resonance structures of the given molecule/ion. Be sure to include all lone pairs.arrow_forwardWith reference to cation B, label each species as an isomer, a resonance structure, or neither.arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning