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Organic Chemistry – Some Basic Principles and Techniques
Write resonance structures of CH2 = CH–CHO, indicate relative stability of the contributing structures.
The resonance structures of CH2 = CH – CHO can be written as:
Structure 1 is the most stable because each carbon and oxygen atom has an octet and no carbon or oxygen atom has a charge.
In structure II, the negative charge on the more electronegative atom and a positive charge on the more electropositive atom.
Structure III is least stable because more electronegative oxygen has a positive charge and electropositive carbon has a negative charge.
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What does IUPAC stand for?
What system of nomenclature is accepted universally?
What are isomers?
How many chain isomers are possible for pentane?
Which characteristic is common to different isomers of a compound?
Name three alkanes which do not show chain isomerism.
Name the types of structural isomerism shown by alkanes.
Name the four main types of structural isomerism.
Write the three possible open chains of five carbon atoms
What types of structural isomerism is shown by the following pairs of organic compounds ?
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