Is the following reaction an example of a redox reaction?
Cr2O72– (aq) + H2O (l) ⇄ 2 CrO 42– (aq) + 2 H+ (aq)
a) Yes, Cr is oxidized and oxygen is reduced
b) Yes, Cr is oxidized and hydrogen is reduced
c) Yes, oxygen is oxidized and Cr is reduced
d) Yes, hydrogen is oxidized and Cr is reduced
e) No, neither hydrogen, oxygen, nor Cr are oxidized or reduced
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