South Carolina State University Chapter 2
Department of Biological and Physical Sciences
General Chemistry I, C 150 -07 Hamidi
Multiple Choice: Identify the letter of the choice that best completes the statement or answers the question.
____ 1. Which of the following statements is not an idea from Dalton's Atomic Theory?
a. An element is composed of extremely small indivisible particles called atoms.
b. All atoms of a given element have identical properties which differ from those of all other
elements.
c. Atoms can only be transformed into atoms of another element by nuclear reactions.
d. Compounds are formed when atoms of different elements combine with each other in
small whole-number ratios.
e. The relative numbers and kind of atoms are constant in a given compound.
____ 2. There are two different common crystalline forms of carbon - diamond and graphite. A less common form
called fullerene, C60, also exists. Different forms of the same element in the same physical state are called:
a. isotopes.
b. isomers.
c. alloforms.
d. allotropes.
e. structural formulas.
____ 3. How many atoms are in a sulfuric acid molecule?
a. 1
b. 7
c. 5
d. 6
e. 8
____ 4. If a sample of propane, C3H8, contains a total of 6.0 × 103 atoms of carbon, how many molecules of propane
are in the sample?
a. 6.0 × 103
b. 3.0 × 103
c. 8.0 × 103
d. 1.1 × 104
e. 2.0 × 103
____ 5. Which formula/name pair do not match?
a. HNO3/ nitric acid, used to produce explosives
b. CH3OH/ methyl alcohol, wood alcohol
c. CH3CH2OH/ ethyl alcohol, alcohol in wine
d. CHCl3/ acetic acid, found in vinegar
e. CH3CH2OCH2CH3/ diethyl ether, an anesthetic
____ 6. Each response below lists an ion by name and by chemical symbol or formula. Also each ion is classified as
monatomic or polyatomic and as a cation or anion. Which response contains an error?
a. hydroxide monatomic anion
b. carbonate polyatomic anion
c. ammonium polyatomic cation
d. magnesium monatomic cation
e. sulfite polyatomic anion
