Download Chemistry revision Multiple Choice Identify the letter of the choice

Chemistry revision
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. In the compound sodium fluoride, NaF, the sodium atom loses one electron and the fluorine atom gains one
electron to form ions that have electron configurations similar to
a. helium.
c. neon.
b. oxygen.
d. calcium.
2. An anion
a. is an ion with a negative charge.
b. attracts ions with negative charges.
c. results when an alkaline-earth metal loses one of its two outermost electrons.
d. has more protons than electrons.
3. An ion and its parent atom have the same
a. electron configuration.
c. atomic number.
b. number of charges.
d. chemical reactivity.
4. What is the ratio of cations to anions in a compound composed of sodium ions, Na+ and carbonate ions?
a. 1 to 1
c. 2 to 1
b. 1 to 2
d. 3 to 1
5. What is the metallic ion in the compound CuCl2?
a. Cu2–
c. Cu+
b. Cu–
d. Cu2+
6. What is the formula for the compound formed by calcium ions, Ca2+, and chloride ions, Cl–?
a. CaCl
c. CaCl3
b. Ca2Cl
d. CaCl2
7. The chemical formula for an ionic compound represents the
a. number of atoms in each molecule.
b. number of ions in each molecule.
c. simplest ratio of ions that results in an electrically neutral compound.
d. total number of ions in the crystal lattice.
8. The symbol
represents a
a. monatomic ion.
c. polyatomic ion.
b. stable compound.
d. salt.
9. A comparison of calcium sulfate and calcium sulfite shows that
a. both have a monatomic cation and a polyatomic anion.
b. calcium sulfite has more oxygen atoms than calcium sulfate.
c. only calcium sulfite contains a polyatomic anion.
d. only calcium sulfate is arranged in a crystal lattice pattern.
10. What is the formula for the compound formed by lead(II) ions and chromate ions, CrO42–?
a. PbCrO4
c. Pb2(CrO4)3
b. Pb2CrO4
d. Pb(CrO4)2
11. What is the formula for the compound formed by aluminum(III) and the sulfate ion, SO42–?
a. AlSO4
c. Al2(SO4)3
b. Al2SO4
d. Al(SO4)3
12. What is the formula for the compound formed by tin(IV) and the chromate ion, CrO42–?
a. Sn(CrO4)4
c. Sn2(CrO4)4
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b. Sn2(CrO4)2
d. Sn(CrO4)2
What is the formula for the compound formed by the barium ion, Ba2+, and the hydroxide ion, OH–?
a. BaOH
c. Ba(OH)2
b. BaOH2
d. Ba(OH)
Name the compound Ni(ClO3)2.
a. nickel chlorate
c. nickel chlorite
b. nickel chloride
d. nickel peroxide
Name the compound Zn3(PO4)2.
a. zinc potassium oxide
c. zinc phosphate
b. trizinc polyoxide
d. zinc phosphite
Name the compound Hg2(NO3)2.
a. mercury(II) nitrate
c. mercury(I) nitrate
b. dimercury dinitrate
d. mercuric nitrate
Name the compound KClO3.
a. potassium chloride
c. potassium chlorate
b. potassium trioxychlorite
d. hypochlorite
Name the compound Fe(NO2)2.
a. iron(II) nitrate
c. ferric nitrate
b. iron(II) nitrite
d. ferrous nitride
Name the compound CuCO3.
a. Copper(I) carbonate
c. cuprous carbide
b. cupric trioxycarbide
d. copper(II) carbonate
The electrons involved in the formation of a covalent bond are
a. transferred from one atom to another.
c. valence electrons.
b. found only in the s-orbitals.
d. in filled orbitals.
The chemical bond formed when two atoms share one or more pairs of electrons is a(n)
a. ionic bond.
c. polar bond.
b. orbital bond.
d. covalent bond.
The correct Lewis structure for the oxygen atom has
a. one pair of valence electrons and one single valence electron.
b. two pairs of valence electrons and one single valence electron.
c. two pairs of valence electrons and two single valence electrons.
d. three pairs of valence electrons.
The correct Lewis structure for the boron atom has
a. one single valence electron.
b. two single valence electrons.
c. three single valence electrons.
d. one pair of valence electrons and one single valence electron.
The correct Lewis structure for a Group 8 atom has
a. one pair of valence electrons and one single valence electron.
b. two pairs of valence electrons and one single valence electron.
c. three pairs of valence electrons and one single valence electron.
d. four pairs of valence electrons.
In a double bond, two atoms share a total of _____ electrons.
a. two
c. four
b. three
d. six
The correct Lewis structure for a molecule of the compound C2H2 contains
a. three single bonds.
c. three double bonds.
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b. two double bonds.
d. one triple bond.
Carbon shows a very strong tendency to form
a. ionic bonds.
c. hydrogen bonds.
b. covalent bonds.
d. highly polar bonds.
How many outermost electrons does a carbon atom have?
a. 3
c. 5
b. 4
d. 6
How many single covalent bonds can a carbon atom form?
a. 2
c. 4
b. 3
d. 5
Carbon atoms readily join with atoms of
a. metals.
c. both other elements and carbon.
b. carbon only.
d. nonmetals.
Which of the following is the functional group in alcohols?
a. –COOH
c. –CO
b. –OH
d. –O–
The name of a compound with the functional group –OH has the suffix
a. –ol.
c. oic acid.
b. –al.
d. one.
Which are large molecules made of many small units joined by organic reactions?
a. monomers
c. polymers
b. copolymers
d. linear polymers
Carbohydrate molecules contain atoms of
a. carbon and water.
b. carbon, hydrogen, and oxygen.
c. carbon hydrogen, and nitrogen.
d. carbon, hydrogen, nitrogen, and oxygen.
What type of biological molecule provides the main source of human food energy?
a. hydrocarbon
c. carbohydrate
b. amino acid
d. protein
What is the primary function of glucose in your body?
a. to give structure to cell walls
b. to carry energy through the circulatory system to cells
c. to store energy
d. as a starting material for cellulose
Completion
Complete each sentence or statement.
37. The name of the ion O2– is the ____________________ ion.
38. The name of the ion Cu+ is the ____________________ ion.
39. The chemical formula for the compound strontium sulfide, which contains Sr2+ and S2– ions, is
____________________.
40. An electrically charged group of two or more bonded atoms that functions as a single ion is called a(n)
____________________ ion.
41. The chemical formula for the compound sodium chlorite, which contains Na+ and
____________________.
ions, is
42. A bond formed by atoms that share one or more pairs of electrons is called a(n) ____________________
bond.
43. The bond length is the average distance between the ____________________ of two bonded atoms.
44. A(n) ____________________ is a hydrocarbon that contains only single bonds.
45. An alkene is a hydrocarbon that contains one or more ____________________ bonds.
46. An alkane with the prefix hept- has ____________________ carbon atoms.
47. A hydrocarbon in which each carbon atom forms four single covalent bonds with other atoms is a
____________________ hydrocarbon.
48. A large molecule that is made by an addition reaction is a ____________________.
49. The polysaccharide ____________________ is manufactured in animal cells to store energy in muscles.
50. The shape of a DNA molecule is described as a(n) ____________________.
Short Answer
Table 1 Prefixes for Naming Molecular Compounds
Prefix
Number of Atoms
Prefix
Number of Atoms
mono-
1
hexa-
6
di-
2
hepta-
7
tri-
3
octa-
8
tetra-
4
nona-
9
penta-
5
deca-
10
51. Use Table 1 and the periodic table to name the compound HoI3.
52. Use Table 1 and the periodic table to name the compound Sb2S3.
53. Use Table 1 and the periodic table to name the compound P2Se5.
54. Use Table 1 and the periodic table to name the compound PdO.
55. Use Table 1 and the periodic table to write the formula of samarium trichloride.
56. Use Table 1 and the periodic table to write the formula of molybdenum hexafluoride.
57. Use Table 1 and the periodic table to write the formula of dinitrogen pentoxide.
58. Use Table 1 and the periodic table to write the formula of dipotassium pentasulfide.