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# $O_2^{2-}$ is the symbol of _________ ion.

$\begin{array}{1 1}(a)\;\text{Oxide}\\(b)\;\text{Super}\\(c)\;\text{Peroxide}\\(d)\;\text{Monoxide}\end{array}$

Can you answer this question?

$O_2^{2-}$ is the symbol of peroxide ion.
Hence (c) is the correct answer.
answered Jan 23, 2014