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An organic compoud [A] which has charact...

An organic compoud [A] which has characteristic odour on treatment with `NaOH` forms two compounds [B] and [C]. Compounds [B] has the molecule formula `C_(7)H_(8)O`. Which on oxidation gives back compound [A]-The compound [C] is the sodium salt of an acid [C]. When [C] is heated with sodalime, it yield an aromatic hydrocarbon [D]. Deduce the structures of [A], [B], [C] and [D].

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To deduce the structures of compounds [A], [B], [C], and [D], let's analyze the information provided step by step. ### Step 1: Identify Compound [A] The question states that compound [A] has a characteristic odor and reacts with NaOH to form two products. Given that it is an organic compound with a characteristic odor, it is likely an aromatic aldehyde. **Conclusion**: - Compound [A] is **Benzaldehyde (C₇H₆O)**, which has the structure: ...
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