2004 Practice Exam

2004 Practice Exam - Past Final Exam (Practice) 1. Which of...

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Past Final Exam (Practice) 1. Which of the following compounds could behave as a ligand to a transition metal A. BH 3 B. CH 4 C. Na + D. PH 3 E. None of the liste compounds 2. Which of the following coordination complex can give rise to a set of geometric isomers A. [Co(NH 3 ) 5 NO 2 ] +2 B. [Co(en) 2 Cl 2 ] + C. [Pt(NH 3 ) 3 SCN]+ D. [Cr(H 2 O) 6 ] +3 E. None of these 3. Which metal complex below is chiral? A. [cis-Fe(en) 2 I 2 ] + B. [Fe(NH 3 ) 4 Cl 2 ] + C. [Fe(NH 3 ) 6 ] 3+ D. [trans-Fe(en) 2 I 2 ] + E. none of these complexes are chiral. 4. The number of unpaired electrons in a coordination compound depends upon: A. the identity of the central metal atom B. the oxidation state of the central metal atom C. the identity of the ligands D. the coordination geometry E. all of these 5. In the coordination compound [Pt(NH 3 ) 2 Cl 2 ], the coordination number and oxidation number of the central atom are, respectively A. 2, 0. B. 4, 4. C. 5, 0. D. 4, 2. E. 6, 2. 6. [CuCl 4 ] 2+ absorbs light in the blue part of the visible spectrum, thereby appearing to have the colour: A. yellow B. cyan C. green D. blue E. red 7. How many 3d electrons does a V 3+ ion have? A. 6. B. 5. C. 4. D. 3. E. 2. Page 1
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The complex ion [Cr(CN) 6 ] 4– has magnetic properties that correspond to how many unpaired electrons? A. 0 B. 1 C. 2 D. 3 E. 4 9. Complexes with 8 d electrons prefer square planar rather than tetrahedral geometries. Which of the following complexes is square planar? A. [Rh(NH 3 ) 4 ] + B. Ni(CO) 4 C. [FeCl 4 ] 2- D. [Pd(H 2 O) 6 ] 2+ E. [Ag(NH 3 ) 2 ] + 10. Which of the following will show the greatest energy increase when six ligands approach the central metal atom along the x, y, and z axes? A. d xy B. d yz C. d z 2 D. d xz E. They should all be the same. 11. A compound contains platinum(II) with two ammonia molecules bonded to it. The compound also contains two moles of chloride (Cl - ) per mole of platinum. Treatment of the compound with silver nitrate does not result in the precipitation of silver chloride. The formula of the compound is: A. [Pt(NH 3 ) 2 ]Cl 2 B. [Pt(NH 3 ) 2 Cl]Cl C. [Pt(NH 3 ) 2 Cl 2 ] D. This cannot be determined from the available information. E. None of these compounds is the correct formula. 12. Which one of the following is an example of a covalent network solid? A. SiO 2 B. K C. I 2 D. CaCl 2 E. None of these form a covalent network solid. 13. Choose the INCORRECT statement. A. In a network covalent solid, covalent bonds extend throughout the cystalline solid. B. In diamond the carbon atoms are sp3 hybridized. C. In graphite the carbon atoms are sp hybridized. D. Fullerenes are recently discovered allotropic form of carbon. E. Nanotubes are an allotropic form of carbon. Page 2
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2004 Practice Exam - Past Final Exam (Practice) 1. Which of...

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