CHEM 110 QUESTIONS AND ANSWERS. REVISION MATERIAL FOR 2024/2025

CHEM 110 QUESTIONS AND ANSWERS. REVISION
MATERIAL FOR 2024/2025

1 . Given an alkane, an alkene, and an alkyne, each of which contains two
carbon atoms, which compound will contain the fewest hydrogens?
A. The alkane
B. The alkene
C. The alkyne
D. None, they all contain the same number of hydrogen atoms: C. The
alkyne 2. A bond angle of 180 degrees is associated with the carbons in
which functional group?
A. alkanes
B. alkenes
C. alkynes
D. arenes: C. alkynes
3. Which of the following general formulas could belong to that of a cyclic
alkane?
A. C2H6
B. C3H4
C. C4HIO
D. C5HIO: D. C5HIO
4. Which of the following is generally true of most organic compounds?
A. Their bonding is covalent
B. Their aqueous solutions conduct electricity
C. Both A and B

1/11

, CHEM 110 QUESTIONS AND ANSWERS. REVISION
MATERIAL FOR 2024/2025

D. Neither A nor B: A. Their bonding is covalent
5. Which of the following is the correct molecular formula for 2-
methylpentane?
A. C5HIO
B. C5H12
C. C6H12
D. C6H14: D. C6H14
6. A chemist has two pure samples of an organic compound, one of which
she obtained from a natural source, and one of which she synthesized in
the lab. Which of the following properties can she use to determine which
is the synthetic sample?
A. Boiling point
B. Formula weight
C. Solubility
D. None of these: D. None of these
7. Alkanes belong to which class of hydrocarbons?
A. Alkali
B. Aromatic
C. Saturated
D. Unsaturated: C. Saturated
8. Unbranched hydrocarbons are also called straight chain hydrocarbons.
Which of the following is true of unbranched hydrocarbons?
A. The C-C-C bond angle is 180 degrees

2/11