1-Give one example for the following (Choose 7 only):
a-A transition metal with a higher oxidation state (+7) and a lower oxidation state (+1).
b-A metal complex with umbrella (tripod) type ligand.
c-Copper(I) complex with coordination number 3.
d-Complex with coordination number 5.
e-Complex with coordination number 6.
f-Dinegative bidentate ligand.
g-Neutral tridentate ligand.
h-Hexadentate ligand.
i-Square planar Ni(II) complex.
j-Simple salt and Double salt.
2. For a series of octahedral Pt(IV) complexes with NH3
molecules and / or chloride ions, the following molar
conductances were found :
a. 522.9 b) 400.5 c) 228 d) 96 e) non electrolyte
Explain these results and write down the formula of each
complex?
3-Explain why Zr is always associated with Hf in nature
and their separation from each other is rather
difficult ?
4-What are the different oxidation states of the first
series of transition metals.
5-Define the following briefly (Choose 4 only):
1. Coordination number.
2. Transition metals.
3. Lanthanide contraction.
4. Exchange energy.
5. Werner theory and type of valence.
6. Ligand.
6-Explain why Transition metal ions tend to form
complexes ?
