1 CHEM 10052 Spring 2000 Exam #1 Name______________________ ss#________________________ 1. The following molecule contains five different functional groups. Circle and identify all of the functional groups in this compound. (10 pts.) O O HO O N 2. Give examples of compounds that contain the following functional groups (10 pts.). a) amide b) alkyne d) sulfide e) ether c) aldehyde 2 3. Name the following compounds using either common nomenclature or IUPAC systematic nomenclature (10 pts). NO 2 CH CH CH 3 CH3 CH2 CH2 CH2 CH3 CH3 CHCH2CH3 a) CH3 d) C b) CH 3 C C CH CH 2 CH 3 2 H CH3 3 C c) H CH3 e) 4. Draw structural formulas for the following compounds (10 pts): a) cyclobutane d) cis-2-butene b) 2-bromo-2-methylpentane c) 2-hexyne e) trans-1, 3-dimethylcyclohexane 3 5. Using an orbital diagram describe the bonding in a triple bond. Label the and bonds, indicate bond angles, and describe the molecular geometry and orbital hybridization. (8 pts.) 6. Draw and name three isomers with the molecular formula C5H10. (9 pts). 7. Draw Lewis Structures for the following. Draw at least one stable resonance form that may exist and include formal charges for all atoms in the structure. Circle the most stable resonance form in cases where there are differences. (8 pts.) a. SCN– b. NO2 4 8. Describe the structural and physical properties of hydrocarbons (alkanes, alkenes, and alkynes) as compared to water. Include descriptions of hybridization, molecular geometry, melting point, boiling point, hydrogen bonding, solubility etc. (7 pts.) 9. Predict the products of the following reactions. Indicate major and minor products where appropriate. (2 pts. each). CH3 CH CH3+ Br2 a. excess CH3 CH3 H C b. light H2 Pt C H H Br2 c. + excess Cl 2 d. CH3 H C e. f. H CH 3 + H C H H2O C C CH3 + O2 OH g. light H2SO 4 spark 5 10. Supply the reagents required to complete the following transformations (2 pts. ea.) OH CHCH3 a. CH3 H C b. H C CH 3CH 2CH 2CH 2CH 3 CH2 CH3 11. Give a detailed mechanism for hydration of propene. Explain why one possible product is formed in preference to the other possible product. (8 pts.)