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Explain with example the Positive Mesomeric Effect . |
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Answer» Solution :Positive resonance effect occurs, when the electrons move awayfrom substituent attached to the conjugated SYSTEM. It occurs, if the electron RELEASING substituents are attached to the cojugated system. In such cases. The attached group has a tendency to release electrons through resonance . These electron releasinggroups are usually DENOTED as + R or + M grourp. Examples : ` - OH, - SH, - OR, - SR, - NH_(2), - O-` |
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