IUPAC Quiz: Naming Chemical Compounds
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Play this "Naming chemical compounds quiz" and choose correct IUPAC names. In this quiz, you have to give names and chemical formulas of different chemical compounds. IUPAC stands for The International Union of Pure and Applied Chemistry, an international body representing chemistry and related sciences in individual countries. So, if you really think you can score well on this IUPAC quiz, then give it a try? Take up this quiz below and test your knowledge for the same. Good luck, buddy!
- 1.
What is the formula for Barium Sulfide?
- A.
Ba2S
- B.
BaS
- C.
BS
Correct Answer
B. BaSExplanation
The formula for Barium Sulfide is BaS. This is because Barium has a 2+ charge and Sulfur has a 2- charge, so they combine in a 1:1 ratio to form BaS.Rate this question:
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- 2.
What is the name for CuCl?
- A.
Copper Chloride
- B.
Copper Monochloride
- C.
Copper(I) Chloride
Correct Answer
C. Copper(I) ChlorideExplanation
CuCl is commonly known as Copper(I) Chloride. This is because CuCl contains copper in its +1 oxidation state, hence the Roman numeral (I) in the name. The compound is formed by the combination of one copper atom and one chlorine atom, resulting in the formation of Copper(I) Chloride.Rate this question:
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- 3.
What is the chemical name for MgSO3?
- A.
Manganese Sulfate
- B.
Magnesium Sulfite
- C.
Magnesium Sulfate
Correct Answer
B. Magnesium SulfiteExplanation
The correct answer is Magnesium Sulfite. The chemical formula for Magnesium Sulfite is MgSO3. It is composed of one magnesium ion (Mg2+) and one sulfite ion (SO3^2-). Manganese Sulfate is a different compound with the chemical formula MnSO4. Magnesium Sulfate, on the other hand, has the chemical formula MgSO4. Therefore, the correct chemical name for MgSO3 is Magnesium Sulfite.Rate this question:
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- 4.
What is the formula for Iron(II) Nitride?
- A.
Fe3N2
- B.
Fe2N
- C.
FeN
Correct Answer
A. Fe3N2Explanation
The formula for Iron(II) Nitride is Fe3N2. This is because Iron(II) has a +2 charge and Nitride has a -3 charge. To balance the charges, we need three Iron(II) ions (each with a +2 charge) to combine with two Nitride ions (each with a -3 charge), resulting in Fe3N2.Rate this question:
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- 5.
What is the formula for Zinc Hydroxide?
- A.
Zn(OH)2
- B.
ZnOH
- C.
ZnO
Correct Answer
A. Zn(OH)2Explanation
The correct answer is Zn(OH)2. Zinc hydroxide is composed of one zinc ion (Zn2+) and two hydroxide ions (OH-). The formula Zn(OH)2 represents this composition, with the subscript 2 indicating the presence of two hydroxide ions. Zinc hydroxide is a white solid that is commonly used in various applications, including as a precursor for the production of zinc oxide and as an ingredient in pharmaceuticals and cosmetics.Rate this question:
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- 6.
What is the name for PbCl2?
- A.
Lead Chloride
- B.
Lead(IV) Chloride
- C.
Lead(II) Chloride
Correct Answer
C. Lead(II) ChlorideExplanation
The correct answer is Lead(II) Chloride. This compound is commonly known as lead chloride. The Roman numeral II in parentheses indicates that lead is in its +2 oxidation state. This is because the chloride ion has a charge of -1, so in order for the compound to be neutral, lead must have a +2 charge. Therefore, the correct name for PbCl2 is Lead(II) Chloride.Rate this question:
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- 7.
What is the name for CuO?
- A.
Copper(I) Oxide
- B.
Copper(II) Oxide
- C.
Copper Oxide(II)
Correct Answer
B. Copper(II) OxideExplanation
CuO is known as Copper(II) Oxide because it contains copper in its +2 oxidation state. The Roman numeral II in the name indicates the oxidation state of the copper atom in the compound. Copper(I) Oxide would refer to a compound where copper is in its +1 oxidation state, which is not the case for CuO. Copper Oxide(II) is not a commonly used naming convention for this compound.Rate this question:
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- 8.
What is the formula for Copper(I) Oxide?
- A.
Cu2O
- B.
CO
- C.
CuO
Correct Answer
A. Cu2OExplanation
Copper(I) oxide is represented by the chemical formula Cu2O. This formula indicates that there are two copper atoms (Cu) and one oxygen atom (O) in the compound. The subscript 2 next to Cu indicates that there are two copper atoms bonded together, while the absence of a subscript next to O indicates that there is only one oxygen atom. Therefore, Cu2O is the correct formula for Copper(I) oxide.Rate this question:
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- 9.
What is the formula for Aluminum Chlorate?
- A.
Al(III)ClO3
- B.
AlClO3
- C.
Al(ClO3)3
Correct Answer
C. Al(ClO3)3Explanation
The correct answer is Al(ClO3)3. This is because the formula for aluminum chlorate is derived from the charges of the ions involved. The aluminum ion has a charge of +3, while the chlorate ion (ClO3-) has a charge of -1. To balance the charges, three chlorate ions are needed for every aluminum ion, resulting in the formula Al(ClO3)3.Rate this question:
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- 10.
What is the formula for FrBr?
- A.
Francium Boride
- B.
Francium(I) Bromide
- C.
Francium Bromide
Correct Answer
C. Francium BromideExplanation
The formula for FrBr is Francium Bromide. Francium is a highly reactive alkali metal and bromide is a halogen. When these two elements combine, they form an ionic compound known as francium bromide.Rate this question:
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Feb 02, 2024Quiz Edited by
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Jan 03, 2011Quiz Created by
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