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Chemistry
Chemistry
Problem
Which anion can undergo both oxidation and reduction? a.
Cr
2
O
7
2
−
\text{Cr}_2\text{O}_7^{2-}
Cr
2
O
7
2
−
b.
NO
3
−
\text{NO}_3^-
NO
3
−
c.
OCl
−
\text{OCl}^-
OCl
−
d.
S
2
−
\text{S}^{2-}
S
2
−
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