An organic compound (A) having moleclar formula `C_(2)H_(6)O` on oxidation with `Na_(2)Cr_(2)O_(7)//H_(2)SO_(4)` produces a compound `(B)` which reduces Tollens' reagent. Both (A) and (B) produce a yellow soli on treatment with `I_(2)//OH^(-)`. Identify (A) and (B).

Explanation

To solve the problem, we need to identify the organic compounds (A) and (B) based on the given information about their molecular formula, oxidation reactions, and the reactions with Tollens' reagent and iodine in the presence of hydroxide ions.

### Step-by-Step Solution:

1. **Determine the Structure of Compound (A)**:
- The molecular formula of compound (A) is `C2H6O`.
- The degree of unsaturation can be calculated as follows:
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