Multiple Choice
The lanthanide contraction is responsible for the fact that ________.
A) Zr and Y have about the same radius
B) Zr and Nb have similar oxidation states
C) Zr and Hf have about the same radius
D) Zr and Zn have similar oxidation states
E) Zr and Hf have the same oxidation states
Correct Answer:
Verified
Correct Answer:
Verified
Q92: The two more common oxidation states of
Q93: The correct name for [Al(H<sub>2</sub>O)<sub>2</sub>(OH<sup>-</sup>)<sub>4</sub>]<sup>-</sup> is _.<br>A)diwaterquatrahydroxyaluminum<br>B)tetrahydroxydiaquaaluminum
Q94: Name the compound: K<sub>2</sub>[Cr(H<sub>2</sub>O)<sub>4</sub>(CO<sub>3</sub>)<sub>2</sub>].
Q95: Which of the following is not a
Q96: What is the most common geometry found
Q98: Which one of the following species is
Q99: A substance is _ if its ions
Q100: What is the oxidation number of Ni
Q101: What is the oxidation state of iron
Q102: Which ion shown has empty 5s orbitals?<br>A)Mo<sup>2+</sup><br>B)Y<sup>3+</sup><br>C)Zr<sup>4+</sup><br>D)Nb<sup>2+</sup><br>E)All