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Two isomeric compounds, A and B, are known to each have a monosubstituted benzene ring (C6H5)....

Two isomeric compounds, A and B, are known to each have a monosubstituted benzene ring (C6H5). Both have the formula C6H5C3H5O2 and both are insoluble in water. However, when they are treated with an aqueous solution of sodium carbonate, A dissolves, but B does not. Give structures for both A and B consistent with this information. Explain your reasoning. Is the information provided sufficient to uniquely define the structures of A and B? If not, what other experimental data would be useful to further limit the structural possibilities? I really need to understand this really soon please answer as soon as possible.

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