The colour of 62Sm3+ is yellow. The expected colour of 66Dy3+ is
The electronic configuration of 62Sm3+ is 4f4 and that of 66Dy3+ is 4f9. The colour of fn and f14 – n are often identical.
A mixture of TiO2 and BaSO4 is called
Transition metal with low oxidation number will act as
Which of the following pair will have effective magnetic moment equal?
Which is the least soluble in water?
Which of the following ions form most stable complex compound?
Arrange Ce3+, La3+, Pm3+ and Yb3+ in increasing order of their ionic radii
The basic character of the transition metal monoxide follows the order
(At. No. of Ti = 22, V = 23, Cr = 24, Fe = 26)
The metallic oxide which impart purple colour to pottery is
The actinoids showing +7 oxidation state are
The lanthanoids contraction relates to