Which of the following ions has the maximum magnetic moment
$V^{3+}$
$Mn^{3+}$
$Fe^{3+}$
$Cu^{2+}$
Effective magnetic moment of $S{c^{ + 3}}$ ion is
Ammonia is a Lewis base. It forms complexes with cations. Which one of the following cations does not form complex with ammonia
The aqueous solution containing which one of the following ions will be colourless
$CuSO_4(aq) + 4NH_3 \rightarrow X,$ then $X$ is
If the colours of salts of transition elements are due to the presence of unpaired electrons in the transition metal ions, which of the following ions will be colourless in aqueous solution