MCQ
${}_{24}Cr$ has configuration $3{d^5}\,4{s^1}$ instead of $3{d^4}\,4{s^2}$ because of
- AHigher exchange energy
- BSymmetrical distribution of electron
- ✓$(A)$ and $(B)$ both
- DNone of these
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$ \text { a } \mathrm{Cl}_2(\mathrm{~g})+\mathrm{b} \mathrm{OH}^{-}(\mathrm{aq}) \rightarrow \mathrm{c} \mathrm{ClO}^{-}(\mathrm{aq})+\mathrm{d} \mathrm{Cl}^{-}(\mathrm{aq}) +\mathrm{e} \mathrm{H}_2 \mathrm{O}(l)$
The values of $a, \ b,\ c$ and $d$ in a balanced redox reaction are respectively :