${[Sc{({H_2}O)_6}]^{3 + }}$ ion is
Colourless and diamagnetic
Coloured and octahedral
Colourless and paramagnetic
Coloured and paramagnetic
Why do the transition elements exhibits variable oxidation states?
The metal that shows highest and maximum number of oxidation state is:
A blue colouration is not obtained when
The stability of $Cu ^{2+}$ is more than $Cu ^{+}$salts in aqueous solution due to -
Nickel steel contain $\%$ of $ Ni$