Part I: Multiple Choices: Encircle the letter of the best answer.
1. Which of the following organic compounds need not contain oxygen?
A. an alkyne
B. an alcohol
C. an aldehyde
D. a ketone
2. Which of the following is most likely to form hydrogen bonds?
A. an alkyne
B. an alcohol
C. an aldehyde
D. an ether
3. CH2O is the empirical formula for:
A. amino acids
B. proteins
C. carbohydrates
D. aldehydes
4. The IUPAC systematic name for CH3CH2CH2OH is:
A. propane-1-ol
B. n-propanol
C. propanol
D. isopropanol
5. Which hydrocarbon compound has a triple bond in a molecule?
A. octane
B. methane
C. ethene
D. ethyne
6. Why are carbon atoms able to form many organic compounds?
A. Carbon compounds have strong attraction to other elements
B. Carbon atoms attract electrons from other atoms
C. Carbon atoms can form many types of bonds with other carbon
D. None of the above
7. Which of the following statements best describe organic compounds?
A. Organic compounds are compounds that contain carbon and oxygen only
B. Organic compound are compounds that are produced by living things
C. Organic compounds are composed mainly of carbon and hydrogen
D. Organic compounds are compounds that contain carbon atoms only
8. What is the maximum number of bonds can carbon atom form?
A. 2
B. 3
C.4
D.5
9. What happens to the boiling point of hydrocarbon compounds when the number of carbon atoms
A. remains the same
B. decrease
C. increases
D. increase then decreases
10. Which hydrocarbon compound has a double bond in the molecule?
A. ethane
B. methane
C. propene
D. propyne​