MCQ
Which is incorrectly matched ?
- ✓$CsBr_3 \rightleftharpoons Cs^+ + Br^-$
- B$I_4O_9 \rightleftharpoons I^{3+} + (IO_3^-)_3$
- C$AgBrO_3 \rightleftharpoons Ag^+ + BrO_3^-$
- D$I_2O_4 \rightleftharpoons IO_2^- + IO_2^+$
$(C)$ $\theta_3 > \theta_2 > \theta_1$
$(D)$ Total $20$ unshared lone pairs are present
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Reason : $[Fe(CN)_6]^{3-}$ has $+3$ oxidation state while $[Fe(CN)_6]^{4-}$ has $+2$ oxidation state.

Reason : Covalency of oxygen is two.