Note: Sulfur dioxide ($S{{O}_{2}}$) has two resonance structures that contribute as well like the whole hybrid structure of the molecule.
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1 answer. Stefan V. Sulfur dioxide, or SO2, has two resonance structures that contribute equally to the overall hybrid structure of the molecule.
SO2 has a resonance structure and is not permanently bound.
Carbon dioxide or CO2 has three resonance structures, one of which is a major contributor. The CO2 molecule has a total of 16 valence electrons – 4 from carbon and 6 from each oxygen atom.
A molecule can have resonance structures if it has a lone pair of electrons or a double bond on the atom adjacent to a double bond.
In resonance structures the atoms are all in the same positions, but the number and positions of bonds and lone pairs of electrons can differ. The true form of the molecule is an average of the resonance structures that can be written for it.
Three reasonable resonance structures can be drawn. In each of these resonance structures, two oxygen atoms have charges (each has -1) and one nitrogen atom has a +1 charge. Therefore, all can be assumed to have the same stability.
Disulphur monoxide or sulfur suboxide is an inorganic compound with the formula S2O, one of the lower sulfur oxides. It is a colorless gas and condenses into an approximately dark red colored solid that is unstable at room temperature.
There is no resonance that we have S. E S three and we have 24 valence electrons.
SO2 resonance structures
There is a central sulfur atom (S) with: a singly bonded oxygen atom, a doubly bonded oxygen atom, and a pair of dots at the top . Would it work the other way around if the double bond goes to the right? Again, of course it would. The following image shows the SO2 resonance structures.
Answer: (SO3)2- has 3 resonance structures, one for each structure formed when sulfur forms a double bond with oxygen.
Therefore option (d)- $O\equiv C=O$ is not a resonance structure of carbon dioxide.
C6H5N+H3 (protonated aniline) shows no resonance effect.
A CH2=CHN⊕Me3 resonance is not possible in the molecule. There is no lone pair of electrons on the N-atoms since all valence electrons on the N-atom are involved in bond formation.
A molecule or ion with such delocalized electrons is represented by multiple contributing structures (also called resonance structures or canonical forms). This is the case of ozone (O3), an allotrope of oxygen with a V-shaped structure and an O-O-O angle of 117.5°.
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