Anorganic compound with molecular formula `C_9H_10O` forms 2,4-DNP derivative, reduces Tollens' reagent and undergoes Cannizzaro's reaction. On vigorous oxidation it gives a dicarboxylic acid which is used in the preparation of terylene. Identify the organic compound.

Explanation

To identify the organic compound with the molecular formula C9H10O that meets the specified criteria, we can follow these steps:

### Step 1: Analyze the molecular formula
The molecular formula C9H10O indicates that the compound contains 9 carbon atoms, 10 hydrogen atoms, and 1 oxygen atom. This suggests that the compound could be an aromatic compound, likely containing a benzene ring due to the presence of a carbonyl group (C=O).

**Hint:** Look for functional groups that can explain the presence of oxygen and the degree of unsaturation in the compound.

### Step 2: Identify the functional groups
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