Midterm 2008 - Chemistry 2213a Midterm Test, Fall 2008 Page...

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Chemistry 2213a Midterm Test, Fall 2008 Page 1 Before starting the exam, be sure that you have correctly entered your: Student number Lecture section (001 = Usselman, 002 = Lee) Exam code 111 1. How many H atoms are present in the molecule below? A) 10 B) 8 C) 9 D) 7 E) 5 2. Ethyl 4-aminobenzoate, shown on the right, was extracted in Experiment 2. Which statement(s) is/are correct? 1. It contains 8 bonds 2. It is a polar molecule (has a net dipole moment) 3. It has 5 non-bonding pairs of electrons A) 2 and 3 only B) All statements are correct C) 1 and 3 only D) 2 only E) 1 only O O H 2 N N O
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Chemistry 2213a Midterm Test, Fall 2008 Page 2 3. Which one of A – E contains an arrow formalism that is NOT correct? A) H O O O O H + B) CH 3 O 2 3 O 2 C) 3 NH 2 HO H 2 + 3 3 H 2 O + D) O 2 O 2 E) O O O O 4. Which one of the following ions is NOT stabilized by resonance? A) OH B) OCH 3 C) D) O E)
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Chemistry 2213a Midterm Test, Fall 2008 Page 3 5. How many sp 2 -hybridized carbon atoms are in octyl- p -methoxycinnamate, a common ingredient in sunscreen products? A) 7 B) 4 C) 9 D) 5 E) 3 6. Which statement(s) is/are correct about Viracept , an anti-retroviral drug? HO CH 3 N H O OH S N O NH 1. It has two ketone functional groups 2. It contains exactly three chiral carbons 3. Two carbon-nitrogen bonds have partial double bond character A) 1 and 2 only B) 3 only C) 2 and 3 only D) 2 only E) 1 and 3 only O O H 3 CO
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Chemistry 2213a Midterm Test, Fall 2008 Page 4 7. Which one of the following has the largest equilibrium constant, K a ? A) Br SH H + Br S B) OH H + O C) Cl H + O D) Br H + O E) H + S 8. Which compound below is the most acidic, and which is the most basic? 2 NH 3 2 12 34 most acidic most basic A) 3 3 B) 1 3 C) 1 4 D) 4 2 E) 2 4
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Chemistry 2213a Midterm Test, Fall 2008 Page 5 9. Which one of the indicated atoms in Viracept is the most basic? A) 2 B) 1 C) 5 D) 4 E) 3 10. Which one of the following molecules has two carboxylic acid groups with different pK a values?
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Midterm 2008 - Chemistry 2213a Midterm Test, Fall 2008 Page...

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