Question

Functional Groups In organic there are a number of combinations of atoms that commonly occur. These are called functional groups. Eventually you will see that functional groups are the basis for organic reactivity. For now, we want to learn to draw functional groups and determine if the functional groups are nonpolar, polar or can hydrogen bond to themselves or to water. Please review Appendix E, Table 2. 1. Alkanes only contain carbon and hydrogen and only have sigma bonds between carbons. a. What is the formula and condensed structure? b. Explain whether it is polar or nonpolar. c. Can it hydrogen bond to itself? If yes, draw the interaction. d. Can it hydrogen bond to water? If yes, draw the interaction. 2. Alkyl halides contain carbon and hydrogen and only have sigma bonds between carbons. They also have a halogen present in the molecule. CHÚCICH-CH-CH(CH3 a. What are the formula and Lewis structure? b. Explain whether it is polar or nonpolar. c. Can it hydrogen bond to itself? If yes, draw the interaction. d. Can it hydrogen bond to water? If yes, draw the interaction 3. Alkenes only contain carbon and hydrogen but have a double bond in the molecule. CH,CH=CHCH.CH a. What are the formula and Lewis structure? b. Explain whether it is polar or nonpolar. e. Can it hydrogen bond to itself? If yes, draw the interaction. d. Can it hydrogen bond to water? If yes, draw the interaction. 4. Alkynes only contain carbon and hydrogen but have a triple bond in the molecule. a. What are the condensed formula and Lewis structure? b. Explain whether it is polar or nonpolar. c. Can it hydrogen bond to itself? If yes, draw the interaction. d. Can it hydrogen bond to water? If yes, draw the interaction.

Answer 1

1. A. C5H10& CH3CH2CH2CH2CH3

B. Non polar.

C. No

D. No

I- H (2, t-u- 1 H a I MF-CH ₂ cl Polar b. co No d. No HW H V B HC-c-c-c-c-H # # # # C- a. Mir Cs Ho b. Non polar co No d. NO H (4 H-ccc H& 1 C- C-H 1 H H M.f: CH2 b. Non polar. C: No d - No