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17 March, 01:17

Which item is not nucleophilic? a proton a carbanion an imidazole?

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  1. 17 March, 04:17
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    The term "nucleophilic" describes substances that have excess electron pairs that they want to donate or share.

    A proton does not have any excess electron pairs, so it is not nucleophilic.

    A carbanion has a pair of excess electrons on a carbon atom, so it is nucleophilic.

    An imidazole has excess electrons on its nitrogen atom, so it is nucleophilic.

    Therefore, only the proton is not nucleophilic.
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