Which one of the following is an oxide ?
Show Hint
- \(\mathrm{KO_2}\)
- \(\mathrm{BaO_2}\)
- \(\mathrm{SiO_2}\)
- \(\mathrm{CsO_2}\)
The Correct Option is C
Solution and Explanation
\(\mathrm{KO_2}\) and \(\mathrm{CsO_2}\) are superoxides (contain \(\mathrm{O_2^{-}}\); O is \(-\frac12\)).
\(\mathrm{BaO_2}\) is a peroxide (contains \(\mathrm{O_2^{2-}}\); O is \(-1\)).
\(\mathrm{SiO_2}\): Si is +4 and O is \(-2\), a normal oxide.
Answer: (3) \(\mathrm{SiO_2}\)
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