............ $BM$ છે (નજીકનો પૂણાંક)
(આપેલ : પરમાણુ ક્માંક $\mathrm{V}=23, \mathrm{Mn}=25, \mathrm{Cr}=24$ )
Oxidising power : \(\mathrm{V}^{+5}<\mathrm{Cr}^{+6}<\mathrm{Mn}^{+7}\)
\(\mathrm{V}^{-5}:[\mathrm{Ar}] 4 \mathrm{~s}^0 3 \mathrm{~d}^0\)
Number of unpaired electron \(=0\)
\(u=0\)