fall99org1e1

fall99org1e1 - Fall 99: Exam 1. Ch 1-4 100points Name If...

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Fall 99: Exam 1. Ch 1-4 100points N a m e If you do not want your graded exam placed in the box outside my office, then please tick here Answer all the questions. 1) Draw Lewis structures (lines for bonds and dots for all lone pairs) for the following molecules: (8pts) (a) BF 3 (b) BrCH 2 CH 2 CH 2 OH (c) O O (d) S 2) What is the hybridization of the: (6pts) (i) Boron in (1a) (ii) Carbon attached to bromine in (1b) (iii) The π bonded oxygen in (1c) (iv) The tertiary carbon in (1d) Fall99-org1exam1 page1
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3) Explain in a simple sentence what is meant in a chemical sense by the following arrows. (10pts) (c) (d) (b) (a) (e) 4) (i) Write all the resonance forms for the following two species. (ii) Indicate which are major and minor contributors (or if they are the same energy). (ii) Use curly arrows to show the movement of electrons which converts one into the others. (12pts) (a) (b) CH 3 -C-C N _ H + Fall99-org1exam1 page2
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5) (i) Indicate which reactant is acting as a BASE and which is acting as an
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fall99org1e1 - Fall 99: Exam 1. Ch 1-4 100points Name If...

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