Highest $(+7) $ oxidation state is shown by
$Co$
$Cr$
$V$
$Mn$
Transition element makes complex compound due to
Due to covalent bonding, the transitional metals are
Which one of the following ions is colourless
Metal-metal bonding is more frequent in $4d$ or $5d$ series than in $3d$ series due to
The transitional element of $ III-B $ group is isomorphic with $A{l_2}{(S{O_4})_3}$. Therefore the compound will be