A) \[Zr\]and\[Zn\]have the same oxidation state
B) \[Zr\]and\[Hf\]have about the same radius
C) \[Zr\]and\[Nb\]have similar oxidation state
D) \[Zr\]and Y have about the same radius
Correct Answer: B
Solution :
Lanthanide contraction cancels almost exactly the normal size increases on descending a group of transition elements, thus Nb and Ta or Zr and Hf have same covalent and ionic radii.You need to login to perform this action.
You will be redirected in
3 sec