Organic Chemistry I

1. Draw curved arrows for the following mechanistic step. Topic: Drawing Curved Arrows Section 6.10 Difficulty Level: Medium 2. Identify the nucleophilic and electrophilic sites in the reactants of the following reaction. Ans: Topic: Drawing Curved Arrows Section 6.10 Difficulty Level: Easy 3. Which of the following is the nucleophilic site in the rea

CHEM | 2210 | Organic Chemistry I | assessment | 1. Draw curved arrows for the 

1. Which of the following is the least stable chair conformer of the most stable isomer of 1-ethyl-2,4-dimethylcyclohexane? Ans: A Topic: Disubstituted Cyclohexanes Section 13 Difficulty Level: hard 2. Rank the following conformers of the isomers of 1-ethyl-2,4- dimethylcyclohexane from most to least stable. Ans: C>D>B>A Topic: Cis-Trans Section 1

CHEM | 2210 | Organic Chemistry I | assessment | 1. Which of the following is t

1. Draw an energy diagram for an endothermic reaction with two steps. Ans: Topic: Reading Energy Diagrams Section 6.6 Difficulty Level: Medium 2. Draw an energy diagram for a threestep reaction. Ans: Topic: Reading Energy Diagrams Section 6.6 Difficulty Level: Hard 3. Draw an energy diagram for a concerted exothermic reaction. Ans: Topic: Reading Energ

CHEM | 2210 | Organic Chemistry I | assessment | 1. Draw an energy diagram for 

Topic: Hydrohalogenation Section: 9.3 Difficulty Level: Easy 8. Which of the molecules below would be the expected product for hydrohalogenation of the following alkene with HBr: A) B) C) D) E) Ans: E Topic: Hydrohalogenation Section: 9.3 Difficulty Level: Easy 9. In the addition reaction of HI to 2-methyl-2-butene, the Markovnikov addition mechanism

CHEM | 2210 | Organic Chemistry I | assessment | Topic: Hydrohalogenation Secti

Ans: A and B Chapter 11 Topic: Regioselectivity of Halogenation Section: 11.5 Difficulty Level: Easy 35. Both compounds A and B have molecular formula C 6 H 14 . Monochlorination of compound A results in formation of two constitutional isomers. Monochlorination of compound B results in formation of four constitutional isomers. Identify compounds A and B

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