10-item Test On Formula Writing

10 Questions  I  By Mcabana
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 10-item Test On Formula Writing
This 10-item test will measure how well you understood the rules in writing down the correct chemical formulas of compounds. You have 5 minutes to complete the test. Identify the correct chemical formula of the given compound. Tick the letter that corresponds to your answer. *Numbers in the chemical formulas are supposed to be treated as subscripts.

  
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Questions and Answers

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  • 1. 
    Carbon tetrachloride
    • A. 

      CaCl4

    • B. 

      CCl4

    • C. 

      Ca4Cl

    • D. 

      C4Cl


  • 2. 
    Copper (II) oxide 
    • A. 

      CuO

    • B. 

      Cu2O

    • C. 

      CuO2

    • D. 

      Cu2O2


  • 3. 
    Sodium hypochlorite
    • A. 

      NaClO4

    • B. 

      NaClO3

    • C. 

      NaClO2

    • D. 

      NaClO


  • 4. 
    Aluminum hydroxide
    • A. 

      Al(OH)3

    • B. 

      Al(OH)2

    • C. 

      AlOH

    • D. 

      AlO


  • 5. 
    Copper (II) sulfate pentahydrate
    • A. 

      Cu2SO4 . 5H2O

    • B. 

      CuSO . 5H2O

    • C. 

      CuSO4 . 5H2O

    • D. 

      Cu2(SO4)2 .5H2O


  • 6. 
    Potassium permanganate
    • A. 

      KMnO5

    • B. 

      KMnO4

    • C. 

      KMnO3

    • D. 

      KMnO2


  • 7. 
    Carbon dioxide
    • A. 

      C2O

    • B. 

      CO3

    • C. 

      CO2

    • D. 

      CO


  • 8. 
    Hydrochloric acid
    • A. 

      HClO4

    • B. 

      HClO

    • C. 

      HClO3

    • D. 

      HCl


  • 9. 
    Hyposulfurous acid
    • A. 

      H2SO4

    • B. 

      H2SO5

    • C. 

      H2SO3

    • D. 

      H2SO2


  • 10. 
    Ammonium acetate
    • A. 

      NH4C2H3O2

    • B. 

      NH4(C2H3O2)2

    • C. 

      (NH4)2C2H3O2

    • D. 

      (NH4)2(C2H3O2)2


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