EXAM 1 practice

EXAM 1 practice - Practice Problems for Exam 1 CHEM 231...

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Practice Problems for Exam 1 CHEM 231; Organic Chemistry I Spring 2006 1. What is the ground-state electronic configuration of a chlorine atom? a. 1s 2 2s 2 2p 5 b. 1s 2 2s 2 2p 6 3s23p 5 c. 1s 2 2s 2 2p 6 3s 1 3p 6 d. 1s 2 2s 2 2p 6 3s 2 3p 7 2. Which of the following species possesses a formal charge? a. BH 3 b. BH 4 c. CCl 4 d. H 2 S 3. Which of the following is not a resonance form of the phenolate ion shown below? O O H O O H O O H O O H A B C D 4. Which of the following is the strongest acid? OH N O O CH 2 OH N O O CH 2 OH OH CH 2 OH CH 2 OH A B C D 5. Give the hybridization on the atoms marked with an asterisk.
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1 2 3 a. 1-sp 2 , 2-sp 2 , 3-sp 2 b. 1-sp 2 , 2-sp 3 , 3-sp 2 c. 1-sp 3 , 2-sp 2 , 3-sp 3 d. 1-sp 3 , 2-sp 3 , 3-sp 3 e. 1-sp 2 , 2-sp 2 , 3-sp 3 6. Which of the following statements concerning resonance contributors and resonance hybrids is not correct? a. The fewer the nearly equivalent resonance contributors are in the structure, the less stable the structure b. A resonance hybrid is more stable than the predicted stability of any of its
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EXAM 1 practice - Practice Problems for Exam 1 CHEM 231...

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