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Organic Chemistry – Some Basic Principles and Techniques
Describe the main characteristic features of resonance.
The main characteristic features of resonance are:
(i) Resonance involves only the displacement of electrons over the same atomic nuclei.
(ii) Resonance occurs only when all the atoms lie in the same plane.
(iii) The resonating structures must have the same number of paired and unpaired electrons.
(iv) The energies of various resonating structures should be nearly the same.
(v) A more stable contributing form has a greater percentage representation towards the actual molecule.
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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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