TransMetal SampleQuestions - 2 ) 6 ] 2+ 4. Which of the...

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Transition Metal Sample Exam questions 1. The number unpaired electrons in the low-spin complex, [Co(CN) 6 ] 3- is A) 0 B) 1 C) 2 D) 4 E) 5 2. [CoCl 6 ] 3- is orange while [Co(NH 3 ) 6 ] 3+ is yellow. Which of the following statements is correct ? A) [CoCl 6 ] 3- absorbs orange light. B) The crystal field splitting parameter Δ is larger for [CoCl 6 ] 3- than for [Co(NH 3 ) 6 ] 3+ . C) The different colors are due to the different numbers of unpaired electrons on the complexes. D) The two sets of d orbitals are split further apart in [Co(NH 3 ) 6 ] 3+ than they are in [CoCl 6 ] 3- . E) The different colors are due to the different charges on the complexes. 3. Which one of the following compounds is likely to be colorless? A) [Zn(OH 2 ) 6 ] 2+ B) [Cu(OH 2 ) 6 ] 2+ C) [Fe(OH 2 ) 6 ] 2+ D) [Cr(OH
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Unformatted text preview: 2 ) 6 ] 2+ 4. Which of the following compounds would be paramagnetic? A) [Zn(NH 3 ) 4 ]Cl 2 B) CaSO 4 C) [Cu(H 2 O) 4 ]Br D) [Co(NH 3 ) 6 ]Cl 3 (low spin) E) K[FeCl 4 ] 5. Which one of the following can act as a tridentate ligand (occupies three coordination positions in a complex ion)? A) (CH 3 ) 2 NH B) (CH 3 )(H)NCH 2 CH 2 N(H)CH 2 CH 2 N(H)(CH 3 ) C) (CH 3 )(H)NCH 2 CH 2 N(H)(CH 3 ) D) (CH 3 )(H)NCH 2 CH 2 OCH 2 CH 3 E) NH 3 6. The [Co(NH 3 ) 6 ] 3+ complex ion absorbs light of 262nm. What is the energy of the crystal field splitting? A) 7.59 10 19 J B) 457 J C) 2.62 10 9 J D) 78.6 J E) 3.82 10 19 J ANS A ANSwrs 1. A 2 D 3 A 4 E 5 B 6. A...
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This note was uploaded on 07/23/2008 for the course CHEM 112 taught by Professor Vandersluys,lorschmid,kylem during the Fall '07 term at Pennsylvania State University, University Park.

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TransMetal SampleQuestions - 2 ) 6 ] 2+ 4. Which of the...

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