When wine is put into air it become sour due to

Options :
  1. bacteria
  2. oxidation of C2H2OH in CH3COOH
  3. Virus
  4. Formic acid formation


Answer and Explanation :-

Answer: Option 2

Explanation:

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Here the whole world (stars, water, air,And field, and forest, as they wereReflected in a single mind)Like cast off clothes was left behindIn ashes, yet with hopes that she,Re-born from holy poverty,In lenten lands, hereafter mayResume them on her Easter Day."(Epitaph for Joy Gresham)
- an Examined Life