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e2_f07_131 - CHE 131 Exam 2 Fall 2007 Multiple Choice On...

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CHE 131 Exam 2, Fall 2007 Multiple Choice On the Scantron form, bubble in the letter of the one choice that best completes the statement or answers the question. No credit will be given for multiple answers. ____ 1. Which one of the following molecules does not have a dipole moment? A. HCl B. BrCl 3 C. NCl 3 D. BCl 3 E. N 2 O ____ 2. Which of the following molecules or ions is not paramagnetic in its ground state? ____ 3. Which one of the following species has a trigonal bipyramidal electron pair structure? ____ 4. For which of the following diatomic molecules will the bond order become greater if an electron is removed, i.e., if the molecule is converted to the positive ion in its ground state.
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