Compound Nomenclature Pre-test
Multiple choice questions regarding ionic, covalent, and acid nomenclature
- 1.
Suppose you encounter a chemical formula with H as the cation. What do you know about this compound immediately?
- A.
It is an acid
- B.
It has a +1 charge
- C.
It is an ionic compound
- D.
It is a base
Correct Answer
A. It is an acidExplanation
all acids start with HRate this question:
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- 2.
Which of the following is not a cation?
- A.
Ca2+
- B.
Sulfate
- C.
Iron (III) ion
- D.
Mercury (I) ion
Correct Answer
B. SulfateExplanation
cations are + charged ions. sulfate is an anionRate this question:
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- 3.
Which set of the chemical name and chemical formula for the compound is correct?
- A.
Iron (III) phosphate, FePO4
- B.
Ammonium sulfite, (NH4)2S
- C.
Lithium carbonate, LiCO3
- D.
Magnesium dichromate, MgCrO4
Correct Answer
A. Iron (III) phosphate, FePO4Explanation
use orange ion sheetRate this question:
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- 4.
What is the correct name for CoCl2
- A.
Cobalt (II) chlorate
- B.
Cobalt (I) chloride
- C.
Cobalt (I) chlorate
- D.
Cobalt (II) chloride
Correct Answer
D. Cobalt (II) chloride -
- 5.
What is the correct name for the N3- ion?
- A.
Nitride ion
- B.
Nitrite ion
- C.
Nitrate ion
- D.
Nitrogen ion
Correct Answer
A. Nitride ion -
- 6.
When naming a transition metal ion that can have more than one common ionic charge, the numerical value of the charge is indicated by a
- A.
Superscript after the name
- B.
Suffix
- C.
Prefix
- D.
Roman numeral following the name
Correct Answer
D. Roman numeral following the name -
- 7.
Which of the following correctly represents an ion pair and ionic compound the ions form?
- A.
Na+, Cl- ; NaCl2
- B.
Ca2+, F- ; CaF2
- C.
Ba2+, O2- ; Ba2O2
- D.
Pb4+ , O2- ; Pb2O4
Correct Answer
B. Ca2+, F- ; CaF2 -
- 8.
What type of ions have names ending in -ide?
- A.
Only metal ions
- B.
Only cations
- C.
Only gaseous ions
- D.
Only anions
Correct Answer
D. Only anions -
- 9.
What is the formula for hydrosulfuric acid?
- A.
H2S2
- B.
H2SO2
- C.
HSO2
- D.
H2S
Correct Answer
D. H2S -
- 10.
Which element, when combined with fluorine, would most likely form an ionic compound?
- A.
Phosphorus
- B.
Lithium
- C.
Carbon
- D.
Chlorine
Correct Answer
B. Lithium -
- 11.
What is the formula for sulfurous acid?
- A.
H2SO3
- B.
H2SO4
- C.
H2SO2
- D.
H2S
Correct Answer
A. H2SO3 -
- 12.
Which of the following compounds contains the lead (II) ion?
- A.
Pb2O
- B.
PbO
- C.
Pb2S
- D.
PbCl4
Correct Answer
B. PbO -
- 13.
What is the correct formula for potassium sulfite?
- A.
K2SO3
- B.
K2SO4
- C.
KHSO4
- D.
KHSO3
Correct Answer
A. K2SO3 -
- 14.
Which of the following is true about the composition of ionic compounds?
- A.
They are composed of anions and cations
- B.
They are formed from two or more nonmetallic elements
- C.
They are composed of anions only
- D.
They are composed of cations only
Correct Answer
A. They are composed of anions and cations -
- 15.
Which of the following is the correct name for N2O5 ?
- A.
Nitrous oxide
- B.
Nitrogen dioxide
- C.
Dinitrogen pentoxide
- D.
Nitrate oxide
Correct Answer
C. Dinitrogen pentoxide -
- 16.
What is the correct formula for barium chlorate?
- A.
BaCl2
- B.
Ba(ClO2)2
- C.
Ba(ClO3)2
- D.
Ba(ClO)2
Correct Answer
C. Ba(ClO3)2 -
- 17.
Which of the following shows correctly an ion pair and ionic compound the two ions form?
- A.
Fe3+ , O2- ; Fe2O3
- B.
Cr3+ , I- ; CrI
- C.
Sn4+ , N3- ; Sn4N3
- D.
Cu2+ , O2- ; Cu2O2
Correct Answer
A. Fe3+ , O2- ; Fe2O3Explanation
If the charge numbers are not equal, then criss-cross them :)Rate this question:
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- 18.
Select the correct formula for sulfur hexafluoride.
- A.
F6SO3
- B.
F6S2
- C.
SF6
- D.
S2F6
Correct Answer
C. SF6Explanation
prefixes are equal to subscripts in covalent (molecular) compoundsRate this question:
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- 19.
Which set of chemical name and formula for the same compound is correct?
- A.
Tin(IV)bromide ; SnBr4
- B.
Iron(II)oxide ; Fe2O3
- C.
Aluminum fluorate ; AlF3
- D.
Potassium chloride ; K2Cl2
Correct Answer
A. Tin(IV)bromide ; SnBr4 -
- 20.
What is the correct name for Sn3(PO4)2 ?
- A.
Tin(IV)phosphate
- B.
Tin(III)phosphate
- C.
Tritin diphosphate
- D.
Tin(II)phosphate
Correct Answer
D. Tin(II)phosphate -
- 21.
What is the name of H2SO3 ?
- A.
Sulfuric acid
- B.
Sulfurous acid
- C.
Hydrosulfuric acid
- D.
Hyposulfuric acid
Correct Answer
B. Sulfurous acid -
- 22.
Aluminum is a group 3 metal. Which ion does Al typically form?
- A.
Al3-
- B.
Al5+
- C.
Al3+
- D.
Al5-
Correct Answer
C. Al3+ -
- 23.
Which of the following formulas represents an ionic compound?
- A.
CS2
- B.
BaI2
- C.
PCl3
- D.
N2O4
Correct Answer
B. BaI2 -
- 24.
Molecular compounds are usually
- A.
Composed of two or more nonmetals
- B.
Composed of positive and negative ions
- C.
Composed of metal and nonmetal
- D.
Composed of two or more transition elements
Correct Answer
A. Composed of two or more nonmetals -
- 25.
What is the formula for phosphoric acid?
- A.
H3PO4
- B.
H2PO3
- C.
HPO4
- D.
HPO2
Correct Answer
A. H3PO4Explanation
phosphate has a -3 charge, so the 3 is crossed.Rate this question:
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- 26.
Which of the following formulas represents a molecular compound?
- A.
SO2
- B.
ZnO
- C.
BeF2
- D.
Xe
Correct Answer
A. SO2Explanation
a molecular compound is made of nonmetals (Groups 15-17)Rate this question:
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- 27.
Which of the following shows both the correct formula and correct name of an acid?
- A.
HClO2, chloric acid
- B.
HNO2, hydronitrous acid
- C.
H3PO4, phosphoric acid
- D.
HI, iodic acid
Correct Answer
C. H3PO4, phosphoric acidExplanation
anions ending in -ate become -icRate this question:
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- 28.
How are chemical formulas of binary ionic compounds generally written?
- A.
Anion on the left, cation on the right
- B.
Roman numeral first, then anion, then cation
- C.
Subscripts first, then ions
- D.
Cation on the left, anion on the right
Correct Answer
D. Cation on the left, anion on the right -
- 29.
Which of the following shows a prefix used in naming binary molecular compounds with its corresponding number?
- A.
Hexa- , 8
- B.
Deca- , 7
- C.
Octa- , 4
- D.
Nona- , 9
Correct Answer
D. Nona- , 9Explanation
memorize the molecular prefixesRate this question:
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- 30.
Which of the following correctly provides the names and formulas of polyatomic ions?
- A.
Nitrite: NO- ; nitrate: NO2-
- B.
Carbonate: HCO3- ; bicarbonate: CO32-
- C.
Sulfite: S2- ; sulfate: SO3-
- D.
Chromate: CrO42- ; dichromate: Cr2O72-
Correct Answer
D. Chromate: CrO42- ; dichromate: Cr2O72-Explanation
use your orange ion sheetRate this question:
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Current Version
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Mar 21, 2022Quiz Edited by
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Nov 30, 2010Quiz Created by
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