Hw 3 CHEM 102

Hw 3 CHEM 102 - ] + 3 (d) K 3 [Fe (CN) 6 ] + 3 (e) [Cr (en)...

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NAME __________________ UIN __________________ CHEMISTRY 102 Spring 2007 HW#3 Dr. Ahmed A. Mohamed 1. A Lewis base makes available an electron pair to be shared to form a(n) __ bond. (a) ionic (b) radical (c) coordinate covalent (d) hydrogen (e) basic 2. Most transition metals have vacant ______orbitals that can accept shares in electron pairs; thus they can act as Lewis _________. (a) d; bases (b) p; acids (c) s; bases (d) p; bases (e) d; acids 3. What is the charge on a complex consisting of 1 cobalt(III), 4 ammonia ligands and 2 chloride ion ligands? (a) –2 (b) +1 (c) –1 (d) +3 (e) 0 4. In which one of the following is the oxidation state of the underlined metal incorrect? Complex Ion Oxidation State of Underlined Metal (a) [Mn (en) 2 (F)(I)]NO 3 + 3 (b) [Pt (NH 3 ) 2 (Cl) 2 ]Cl 2 +2 (c) K 3 [Co (NO 2 ) 6
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Unformatted text preview: ] + 3 (d) K 3 [Fe (CN) 6 ] + 3 (e) [Cr (en) 3 ] 2 (SO 4 ) 3 + 3 5. Which ligand formula is incorrectly matched with its name as a ligand ? (a) H 2 O aqua (b) NH 3 ammine (c) CN cyanide (d) Cl chloro (e) OH hydroxo 6. Which of the following ligands is a monodentate ligand? (a) ethylenediamine (b) oxalate (c) diethylenetriamine (d) ammonia (e) ethylenediaminetetraacetate 7. The following are examples of what kind of isomers? [ C o ( N H 3 ) 4 (OH 2 )Cl]Cl 2 and [Co(NH 3 ) 4 Cl 2 ]ClH 2 O (a) linkage (b) optical (c) coordination (d) ionization (e) hydrate 8. The following square-planar complexes are what kind of isomers? Pt NH 3 H 3 N F F Pt NH 3 H 3 N F F (a) linkage (b) coordination (c) ionization (d) optical (e) geometric...
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