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Which one of the following products is NOT obtained in anaerobic decomposition of glucose?

1. CO2
2. CH4
3. H2S
4. H2O

Correct answer: H2O

Solution

During anaerobic decomposition of glucose, the primary products are gases like carbon dioxide (CO2), methane (CH4), and sometimes hydrogen sulfide (H2S), but water (H2O) is not produced as a direct result of this process.

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