#0 question

Question number 1 from GRE-Subject test.

Which of the following represents the most
reduced form of carbon?
(A) R-CH3
(B) R-COOH
(C) R-CHO
(D) R-CH2OH
(E) CO2

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Let's go from the opposite. Antonym for reduced is oxidized, which means "with deleted electrons". So 5 is obviously not the right answer, because oxygen is highly electron-horny element, it pulls electrons from all around (only F – fluorine – is more powerful). So number 1 is our choose.
Test of blog ans script (answer toggler) is pretty well passed.