Pre IB Chemistry Ions Quiz

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Pre IB Chemistry Ions Quiz - Quiz

PAY ATTENTION TO THESE DIRECTIONS. For subscripts it shall be put into parentheses. And the superscript will be put in brackets. You will be asked both to identify the Ions and also identify what it is as well.
For example: ClO(4)[-1]


Questions and Answers
  • 1. 

    C(2)H(3)O(2)

    Explanation
    The given chemical formula C(2)H(3)O(2) represents acetate. Acetate is a polyatomic ion that consists of two carbon atoms, three hydrogen atoms, and two oxygen atoms. It is commonly found in various compounds and is known for its role in many biological processes. Acetate is also used in the production of various chemicals, solvents, and pharmaceuticals.

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  • 2. 

    C(6)H(5)COO

    Explanation
    The given chemical formula C(6)H(5)COO represents benzoate. Benzoate is the conjugate base of benzoic acid, which is a common aromatic carboxylic acid. It is formed by replacing the hydrogen in the carboxyl group (COOH) of benzoic acid with a benzene ring (C6H5). Benzoate is often used as a food preservative and is also found naturally in certain fruits and vegetables.

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  • 3. 

    ClO(3)[-]

    Explanation
    The correct answer is "chlorate" because the chemical formula ClO(3)[-] represents the chlorate ion. The ion consists of one chlorine atom (Cl) and three oxygen atoms (O), with a negative charge indicated by the square brackets. Chlorate is a polyatomic ion commonly found in compounds such as potassium chlorate (KClO3) and sodium chlorate (NaClO3).

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  • 4. 

    ClO(2)[-]

    Explanation
    The given correct answer "chlorite" is the name of the compound ClO(2)[-]. Chlorite is an anion that consists of one chlorine atom bonded to two oxygen atoms. It is commonly found in various minerals and is also used in certain industrial processes.

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  • 5. 

    CN[-]

    Explanation
    Cyanide is a chemical compound represented by the formula CN[-]. It is a highly toxic and potentially lethal substance. Cyanide can be found in various forms, such as hydrogen cyanide gas or cyanide salts. It works by interfering with the body's ability to use oxygen, leading to cellular asphyxiation. Due to its extreme toxicity, cyanide is often associated with poisoning cases and is used in certain industrial processes, such as gold mining.

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  • 6. 

    H(2)PO(4)[-]

    Explanation
    The correct answer is "Dihydrogen Phosphate" because the chemical formula H(2)PO(4)[-] represents a molecule that consists of two hydrogen atoms (H) bonded to a phosphate ion (PO(4)[-]). The prefix "di-" indicates that there are two hydrogen atoms in the molecule, and "phosphate" refers to the presence of the phosphate ion. Therefore, the name "Dihydrogen Phosphate" accurately describes the composition of the molecule.

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  • 7. 

    HCO(3)[-]

    Explanation
    The given correct answer for this question is "Hydrogen carbonate, Bicarbonate, Hydrogen carbonate/Bicarbonate". Hydrogen carbonate and bicarbonate are alternative names for the same compound, which is also commonly referred to as hydrogen carbonate/bicarbonate.

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  • 8. 

    HSO(4)[-]

    Explanation
    The correct answer is "Hydrogen sulfate, bisulfate, Hydrogen sulfate/bisulfate". This answer is correct because all three terms refer to the same compound, HSO4-. Hydrogen sulfate and bisulfate are both acceptable names for this ion, and they can be used interchangeably. The slash (/) indicates that either term can be used to refer to the compound.

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  • 9. 

    HS[-]

    Explanation
    The given correct answer includes the terms "Hydrogen sulfide," "bisulfide," and "Hydrogen Sulfied/bisulfide." These terms are all related to the chemical compound HS[-], which is commonly known as hydrogen sulfide. "Bisulfide" is another term for the same compound, while "Hydrogen Sulfied/bisulfide" is a variation in spelling. Therefore, all the options in the answer are correct and refer to the same chemical compound.

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  • 10. 

    CO(3)[2][-]

    Explanation
    The given answer "carbonate" is correct because CO(3)[2][-] represents the carbonate ion. The CO(3) part indicates the presence of one carbon atom and three oxygen atoms. The [2][-] superscript indicates that the ion has a charge of -2. Carbonate is a common polyatomic ion that is found in many compounds, such as calcium carbonate (CaCO3) and sodium carbonate (Na2CO3).

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  • 11. 

    CrO(4)[2][-]

    Explanation
    The given correct answer, "chromate," refers to the chemical compound CrO4^2-. Chromate is an anion that contains one chromium atom bonded to four oxygen atoms. It is commonly used in various industrial processes, such as in the production of pigments, dyes, and corrosion inhibitors. The chromate ion is also involved in redox reactions and can act as an oxidizing agent.

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  • 12. 

    Cr(2)O(7)[2][-]

    Explanation
    The given compound, Cr(2)O(7)[2][-], is called dichromate. This is because it consists of two chromium atoms (Cr) and seven oxygen atoms (O), with a charge of 2- on the entire compound. The term "dichromate" is derived from the presence of two chromium atoms in the compound.

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  • 13. 

    HPO(4)[2][-]

    Explanation
    HPO(4)[2][-] refers to the chemical formula for hydrogen phosphate. Hydrogen phosphate is an ion that consists of one hydrogen atom, one phosphorus atom, and four oxygen atoms. It has a negative charge of 2. The name "hydrogen phosphate" accurately represents the composition of the ion, with hydrogen and phosphate being the main components.

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  • 14. 

    Cr(2)O(4)[2][-]

    Explanation
    The given chemical formula Cr(2)O(4)[2][-] represents the compound oxalate. The symbol Cr indicates the presence of chromium, while O represents oxygen. The subscript 4 indicates that there are four oxygen atoms in the compound. The [2][-] superscript indicates that the compound has a charge of -2. Therefore, the correct answer is oxalate.

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  • 15. 

    HSO(3)[-]

    Explanation
    The correct answer is "Hydrogen Sulfite, Bisulfite, Hydrogen Sulfite/Bisulfite." This answer is correct because all three terms, "Hydrogen Sulfite," "Bisulfite," and "Hydrogen Sulfite/Bisulfite," are different names for the same compound, which has the chemical formula HSO3-. This compound is commonly used in chemistry and is known for its acidic properties.

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  • 16. 

    OH[-]

    Explanation
    Hydroxide is the correct answer because OH- is the chemical formula for hydroxide. Hydroxide is a negatively charged polyatomic ion composed of one oxygen atom and one hydrogen atom. It is commonly found in chemical compounds such as bases and alkalis. The hydroxide ion is responsible for the basic properties of substances that contain it, and it plays a crucial role in many chemical reactions. Therefore, hydroxide accurately represents the given OH- notation.

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  • 17. 

    ClO[-]

    Explanation
    ClO[-] represents the chemical formula for hypochlorite. Hypochlorite is an ion that is derived from hypochlorous acid, which is a weak acid. It is commonly found in bleach and is known for its strong oxidizing properties. The hypochlorite ion is negatively charged and consists of one chlorine atom bonded to one oxygen atom. It is often used as a disinfectant and bleaching agent due to its ability to break down organic compounds and kill bacteria.

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  • 18. 

    NO(3)[-]

  • 19. 

    NO(2)[-]

  • 20. 

    ClO(3)[-]

    Explanation
    The correct answer is "Chlorate" because ClO3[-] is the chemical formula for the chlorate ion. Chlorate is an anion that consists of one chlorine atom bonded to three oxygen atoms. It is commonly found in compounds such as sodium chlorate (NaClO3) and potassium chlorate (KClO3). Chlorate ions are often used in the production of disinfectants, bleaching agents, and fireworks.

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  • 21. 

    ClO(4)[-1]

    Explanation
    Perchlorate (ClO4[-1]) is a polyatomic ion composed of one chlorine atom bonded to four oxygen atoms. It has a negative charge of -1. The name "perchlorate" is given to this ion because it is derived from the compound chlorine (Cl) combined with oxygen (O) in a ratio of 1:4. The -ate suffix indicates that the ion has a higher number of oxygen atoms compared to the -ite suffix. Therefore, "perchlorate" accurately describes the composition and charge of the ClO4[-1] ion.

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  • 22. 

    SCN[-]

  • 23. 

    MnO(4)[-]

    Explanation
    Permanganate refers to the MnO(4)[-] ion, which is a polyatomic ion consisting of one manganese atom bonded to four oxygen atoms. It has a charge of -1, indicated by the square brackets and the negative sign. Permanganate is commonly used as a strong oxidizing agent in various chemical reactions.

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  • 24. 

    SiO(3)[2-]

    Explanation
    Silicate refers to a compound that contains the silicate ion (SiO3)2-. In this case, SiO(3)[2-] represents the silicate ion, with a charge of 2-. Silicates are commonly found in minerals and rocks, and they play an important role in various geological processes. Hence, the correct answer is silicate.

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  • 25. 

    SO(4)[2-]

    Explanation
    SO(4)[2-] is the chemical formula for sulfate. Sulfate is a polyatomic ion composed of one sulfur atom bonded to four oxygen atoms. It has a charge of 2-, indicating that it has gained two electrons to achieve a stable configuration. Sulfate is commonly found in minerals and salts, and it is an important component in various chemical processes and industrial applications.

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  • 26. 

    SO(3)[2-]

  • 27. 

    S(2)O(3)[2-]

    Explanation
    The given correct answer is "thiosulfate." Thiosulfate refers to the compound S(2)O(3)[2-]. It is a polyatomic ion that consists of two sulfur atoms and three oxygen atoms. Thiosulfate is commonly used in various chemical reactions and processes, such as photography and water treatment. It is also used as a reducing agent and in the extraction of gold and silver from ores.

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  • 28. 

    BO(3)[3-]

    Explanation
    The given correct answer "borate" is the correct term for the chemical formula BO(3)[3-]. Borate refers to a compound that contains the borate ion (BO3) with a charge of 3-. This ion is formed when boron, a chemical element, combines with oxygen atoms. Borate compounds are commonly found in minerals and are used in various industrial applications, such as in the production of glass, ceramics, and detergents.

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  • 29. 

    PO(4)[3-]

    Explanation
    Phosphate refers to the PO(4)[3-] ion, which is a polyatomic ion composed of one phosphorus atom bonded to four oxygen atoms. It has a charge of 3- due to the three extra electrons. Phosphate is commonly found in biological systems, such as DNA and ATP, and plays a crucial role in various cellular processes. It is also an essential nutrient for plants and is often used as a fertilizer in agriculture.

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  • 30. 

    NH(4)[+]

    Explanation
    The given correct answer is "Ammonium". Ammonium is a positively charged polyatomic ion with the chemical formula NH4+. It is formed by the combination of ammonia (NH3) and a hydrogen ion (H+). Ammonium is commonly found in various compounds and is often used in fertilizers and household cleaning products.

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  • Current Version
  • Jan 23, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 19, 2008
    Quiz Created by
    Roro
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