Can You Recognize These Chemical Compounds?

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Can You Recognize These Chemical Compounds? - Quiz


Questions and Answers
  • 1. 

    What is the name of the following chemical formula? NaCl

    • A.

      Monosodium monochloride

    • B.

      Sodium chlorine

    • C.

      Sodiumide chlorine

    • D.

      Sodium chloride

    Correct Answer
    D. Sodium chloride
    Explanation
    The correct answer is Sodium chloride because NaCl is the chemical formula for sodium chloride. Monosodium monochloride is not the correct name for NaCl. Sodium chlorine and Sodiumide chlorine are not valid chemical names.

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  • 2. 

    What is the name of the following chemical formula? Fe2O3

    • A.

      Iron oxide

    • B.

      Iron (III) oxide

    • C.

      Iron (II) oxide

    • D.

      Diiron trioxide

    Correct Answer
    B. Iron (III) oxide
    Explanation
    The chemical formula Fe2O3 represents a compound composed of two iron (Fe) atoms and three oxygen (O) atoms. Iron (III) oxide is the correct name for this compound because Fe has a +3 oxidation state in this compound, indicating that it has lost three electrons. The Roman numeral III in parentheses represents the oxidation state of iron.

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  • 3. 

    What is the name of the following chemical formula? AuP

    • A.

      Gold phosphide

    • B.

      Gold (I) phosphide

    • C.

      Gold (III) phosphide

    • D.

      Gold Monophosphide

    Correct Answer
    C. Gold (III) phosphide
    Explanation
    The chemical formula AuP indicates a compound composed of gold and phosphorus. The correct answer, "Gold (III) phosphide," suggests that the gold in the compound is in its +3 oxidation state, while phosphide refers to the phosphorus ion with a -3 charge. This naming convention follows the rules of chemical nomenclature, where Roman numerals are used to indicate the oxidation state of the metal in the compound.

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  • 4. 

    What is the name of the following chemical formula? P2Cl5

    • A.

      Phosphorus chloride

    • B.

      Phosphorus (II) chloride

    • C.

      Phosphorus (V) chloride

    • D.

      Diphosphorus pentachloride

    Correct Answer
    D. Diphosphorus pentachloride
    Explanation
    The chemical formula P2Cl5 indicates that there are two phosphorus atoms and five chlorine atoms in the compound. Therefore, the correct name for this chemical formula is diphosphorus pentachloride, as it accurately describes the composition of the compound.

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  • 5. 

    The chemical compound formula for Potassium Permanganate: 

    • A.

      KMgO4

    • B.

      KMnO4

    • C.

      PMnO4

    • D.

      PMnO2

    Correct Answer
    B. KMnO4
    Explanation
    Potassium permanganate is a chemical compound commonly used as a disinfectant and oxidizing agent. Its formula is KMnO4, which indicates that it consists of one potassium atom (K), one manganese atom (Mn), and four oxygen atoms (O). The correct answer, KMnO4, represents the correct combination of these elements in the compound.

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  • 6. 

    Can you recognize this chemical compound formula: CaS

    • A.

      Calcium sulphate 

    • B.

      Calcium silicate 

    • C.

      Calcium sulfide 

    • D.

      Calcium hydroxide

    Correct Answer
    C. Calcium sulfide 
    Explanation
    The correct answer is Calcium sulfide. The chemical formula CaS represents calcium sulfide, which is a compound made up of one calcium atom and one sulfur atom. Calcium sulfide is a yellowish-white solid that is commonly used in the production of pigments, dyes, and phosphors. It is also used in the manufacturing of rubber and as a reducing agent in various chemical reactions.

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  • 7. 

    What is the chemical compound formula for Sodium bisulfate?

    • A.

      NaHSO4

    • B.

      N2HSO4

    • C.

      Na2HSO4

    • D.

      Na2H2SO4

    Correct Answer
    A. NaHSO4
    Explanation
    The correct answer is NaHSO4. Sodium bisulfate is a compound formed by the combination of sodium (Na), hydrogen (H), sulfur (S), and oxygen (O). The formula NaHSO4 represents the correct combination of these elements in the compound.

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  • 8. 

    Recognize this chemical compound: AgNO3

    • A.

      Silver nitrite 

    • B.

      Silver nitro oxide 

    • C.

      Silver nitrate 

    • D.

      Silver neo-oxide

    Correct Answer
    C. Silver nitrate 
    Explanation
    The chemical compound AgNO3 is known as silver nitrate. This compound is commonly used in various applications such as photography, medicine, and laboratory experiments. Silver nitrate is a white crystalline solid that is highly soluble in water. It is often used as a reagent in chemical reactions and is known for its ability to form a black precipitate when exposed to light.

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  • Current Version
  • Nov 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 27, 2009
    Quiz Created by
    Channerz
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