Chemistry 102 Quiz 1A 1/25/01 Dr. B. Jackson

1. Given HC=CH How many electrons are represented by C=C?

a) 2 b) 4 c) 6 d) 3 e) 5

2. What is the formula for an straight chain alkane 26 carbons in length?

a) C₂₆H₂₆ b) C₂₆H₂₈ c) C₂₆H₅₂ d) C₂₆H₅₄ e) None of these

3. Which of the following is the formula for the butyl group?

a) C₄H₉ b) C₄H₁₀ c) C₄H₆ d) C₄H₇ e) C₄H₈

4. Pick the best name for the following compound.

C C a) 3,3-dimethyl hexane

| | b) 2-ethyl, 2,3-dimethyl pentane

C - C - C - C - C c) 3,3,4-trimethyl hexane

| d) 2,2,4-trimethyl pentane

C - C

5. What is the parent alkane for the following group?

C - C - C a) nonane

| b) octane

C - C - C - C - C - C c) heptane

| d) hexane

C - C - C

6. What is the parent group for

C - C- C a) heptane

| b) heptene

C - C - C- C - C c) pentane

|| d) hexane

C e) hexene

7. 3-ethyl hexane is an isomer of octane.

a) true b) false

8. Cyclopentane and 2-methyl butane are isomers.

a) true b) false

9. 2-pentene and cyclopentane are isomers.

a) true b) false

10. n-octane and 3-methyl pentane are isomers.

a) true b) false

Ans: 1b;2d;3a;4c;5a;6e;7a;8b;9a;10b

Wednesday, March 21, 2007 01:28:00 PM