Chap 7 questions

Chap 7 questions - What are the geometric shape and the...

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What are the geometric shape and the oxidation number of the copper atom, respectively, for the complex ion, [Cu(NH 3 ) 4 (OH 2 ) 2 ] 2+ ? a. tetrahedral ; +2 b. square planar ; -2 c. octahedral ; +2 d. linear ; +3 e. trigonal planar ; +1 What is the relationship between the following two linear complex ions? The complex ions are: a. linkage isomers b. coordination isomers c. geometric isomers d. optical isomers e. the same Consider the experimental data below for compounds 1 and 2 which have the same molecular formula, C 2 H 6 O, compound boiling point, o C freezing point, o C 1 78.5 -117.3 2 -25.0 -138.5 Which of the following statements is TRUE ? a. Compounds 1 and 2 are not isomers. b. Compounds 1 and 2 are optical isomers. c. Compounds 1 and 2 have identical physical properties. d. All of the above are TRUE . e. None of these is TRUE . What is the relationship between the following two square planar complex ions? The complex ions are: a. linkage isomers b. coordination isomers c. geometric isomers d. optical isomers e. the same
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What are the oxidation number (ON) and coordination number (CN) in the coordination compound, [Cu(en)(NH 3 ) 2 ]Cl 2 ? (Be careful.) a. ON = 1, CN = 1 b. ON = 1, CN = 2 c. ON = 2, CN = 2 d. ON = 2, CN = 3 e. ON = 2, CN = 4 The electron configuration for nickel in the zero oxidation state is [Ar]4s 2 3d 8 . Which of the following is the correct valence-bond representation of the complex ion, Ni(CN) 4 -2 ? Note: Unfilled circles represent two paired electrons from nickel and filled circles represent two paired electrons from the cyanide ion. Which one of the following is the correct electron configuration for the Fe 3+ ion? a. [Ar] 4s 1 3d 5 b. [Ar] 4s 2 3d 3 c. [Ar] 4s 1 3d 4 d. [Ar] 3d 6 e. [Ar] 3d 5 Which one of the following best explains why water is a monodentate ligand? a. The oxygen atom in a water molecule only has one lone pair of electrons that it can use to form a coordinate covalent bond to a metal atom. b. Each hydrogen atom in a water molecule has only one electron with which to form a coordinate covalent bond to a metal atom. c. The oxygen atom in a water molecule has two lone pairs of electrons, but both pairs are used to form a single coordinate covalent bond to a metal atom. d. The oxygen atom in a water molecule has two lone pairs of electrons, but the second lone pair is not close enough to a second coordination site to form a coordinate covalent bond. e. None of these. What are the coordination number and the oxidation state, respectively, of the cobalt atom in the compound [Co(NH 3 ) 5 Cl]Cl 2 ? a. 4 ; +2 b. 4 ; +3 c. 5 ; +2 d. 6 ; +2 e. 6 ; +3 "Cobalt Yellow" is a pigment used in oil paints, and contains the coordination compound K 3 [Co(NO 2 ) 6 ]. How many unpaired electrons are there on the cobalt atom in this compound? Note that NO
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This note was uploaded on 02/05/2012 for the course CHEM 116 taught by Professor Stevenson during the Fall '08 term at Purdue.

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Chap 7 questions - What are the geometric shape and the...

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