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CHM_2120_Test_2007_ANSWERS - CHM 2120 Test ANSWERS...

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1 CHM 2120 Test – ANSWERS September 25, 2007 Important notes : - The marks are given as a guide and are subject to change - The test/first midterm change every year. This test should be used only as a guide to approximate format, length and question style. - This year’s test (2010) will cover sections 1-3 of the course syllabus plus material from CHM 1721. Name : ______________________________ Student Number : ______________________ Section: A (MRN Aud): ___________ B (MNT 203): ___________ Total number of marks:
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2 Final Mark ____________ 1. Name the following molecules: (2 points) a. b. 2. Draw the structure of the following molecules: (2 points) b. 3. Circle the strongest base and underline the weakest base in the following set: (2 points) 4. Circle the electrophile that will react the fastest with NaN 3 . Give the structure of the expected product. (2 pts) 5. Identify direction of the dipole in the indicated bonds: (2 pts) a. b.
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3 6. a. Draw the important resonance structures of the following molecule using arrows to show the movement of electrons: (4 pts) b. Label the structures as major, minor and intermediate, as applicable.
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