MCQ
Oxidation state of oxygen in hydrogen peroxide is
- ✓$-1$
- B$+1$
- C$0$
- D$-2$
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($A$) tetranuclear $\left[\mathrm{B}_4 \mathrm{O}_5(\mathrm{OH})_4\right]^{2-}$ unit
($B$) all boron atoms in the same plane
($C$) equal number of $s p^2$ and $s p^3$ hybridized boron atoms
($D$) one terminal hydroxide per boron atom