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An arene when oxidised forms 1,3-dicarbo...

An arene when oxidised forms 1,3-dicarboxylic acid. Write the numbers of side chains and their position in the arene.

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As the arene gets oxidised to a dicarboxylic acid , it has two side chains. It can be said that the two sides chains are at 1,3- or meta-position of each other because a 1,3-dicarboxylic acid forms in the oxidation.
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