The term platforming is
Platinum painting
Flat sheet of platinum
Platinum manufacturing
Platinum used as a catalyst
${[Sc{({H_2}O)_6}]^{3 + }}$ ion is
Number of unpaired electrons in $M{n^{2 + }}$ is
The number of unpaired electrons in ferrous ion is
The magnetic moment of a metal ion of first transition series is $2.83 $ $BM$. Therefore it will have unpaired electrons
Select the diamagnetic coloured compound:-