Name some common characteristics of livi...

Name some common characteristics of living things?

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i) Positive resonance effect (+R effect): The effect in which substituent or group attached to the compound is electron releasing in nature. In this transfer of electrons is away from the substituent or group attached. For example,

ii) Negative resonance effect-R effect) : The effect in which substituent or group attached to the compound is electron attracting in nature. In this, substituent or group attached attracts the electrons towards itself from the compound.
For example

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