The atomic radii from $Cr$ to $Cu$ is almost identical because of
Increasing nuclear charge from $Cr$ to $Cu$
Repulsion among increased electrons
Increased screening effect to nullify increased nuclear charge
All the above
Which of the following complex will show maximum paramagnetism ?
Which of the following statement(s) is(are) correct with reference to the ferrous and ferric ions
The spin only magnetic moments (in $BM$) for free $\mathrm{Ti}^{3+}, \mathrm{V}^{2+}$ and $\mathrm{Sc}^{3+}$ ions respectively are (At.No. $Sc: 21; Ti : 22; V : 23)$
Which of the following ions gives coloured solution
Although $Zr$ belongs to $4d$ and $Hf$ belongs to $5d$ transition series but it is quite difficult to separate them. Why ?