General Properties Of Organic Compounds

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General Properties Of Organic Compounds - Quiz

This quiz is intended for testing the students' knowledge on the general properties of organic compounds such as polarity, solubility, boiling points, combustibility, stability, compatibility, acidity, and basicity. Please view the video before taking the quiz.


Questions and Answers
  • 1. 

    Which of the following compounds is an alcohol?  

    • A.

      MeC(O)Me

    • B.

      MeC(O)OH

    • C.

      MeOH

    • D.

      NaOH

    • E.

      EtOMe

    Correct Answer
    C. MeOH
    Explanation
    MeOH is the correct answer because it is the only compound in the given options that contains the hydroxyl functional group (-OH), which is characteristic of alcohols. MeC(O)Me is a ketone, MeC(O)OH is a carboxylic acid, NaOH is a strong base, and EtOMe is an ether.

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  • 2. 

    Which of the following compounds is readily to dissolve in water? 

    • A.

      Pentane

    • B.

      Pentanol

    • C.

      Pentanoic acid

    • D.

      Sodium pentanoate

    • E.

      Penthouse

    Correct Answer
    D. Sodium pentanoate
    Explanation
    d is very soluble because it's a salt. b and c are slightly soluble.

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  • 3. 

    Which of the following pairs has the highest and lowest boiling points (in any order)? 

    • A.

      Water & NaOH

    • B.

      NaOH & MeOH

    • C.

      MeOH & Water

    • D.

      Water & EtOH

    • E.

      EtOH & MeOH

    Correct Answer
    B. NaOH & MeOH
    Explanation
    NaOH is a solid and has the highest BP. MeOH has the lowest BP. Water has a higher BP than all three alcohols.

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  • 4. 

    Which of the following compounds is likely to have the lowest flash point?  

    • A.

      Gasoline

    • B.

      Cooking oil

    • C.

      Pentane

    • D.

      Rubbing alcohol

    • E.

      Carbon dioxide

    Correct Answer
    C. Pentane
    Explanation
    Gasoline (C8-C12) is extremely flammable; but pentane has an even lower BP, and thus the FP. Carbon dioxide is a gas but not flammable.

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  • 5. 

    Which of the following groups is likely to form a homogeneous solution?  

    • A.

      Water, salt, baby oil

    • B.

      Water, ethanol, gasoline

    • C.

      Ethanol, gasoline, NaOH

    • D.

      Cooking oil, gasoline, paraffin

    • E.

      None of the above

    Correct Answer
    D. Cooking oil, gasoline, paraffin
    Explanation
    All the three components in Group D are hydrocarbons and thus miscible.

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  • 6. 

    Choose the correct sequence of the following compounds in the order of decreasing acidity.(a) water(b) propanoic acid(c) propylamine(d) HCl

    • A.

      A > b > c > d

    • B.

      D > c > b > a

    • C.

      D > b > a > c

    • D.

      D > b > c > a

    • E.

      None of the above is correct

    Correct Answer
    C. D > b > a > c
    Explanation
    HCl is of course the strongest acid. Water is neutral, but more "acidic" than the propylamine base.

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  • 7. 

    In general organic compounds are componds that contain carbon; however there are many exceptions. Which of the following compounds is most likely an organic compound? 

    • A.

      Sodium carbonate

    • B.

      Lithium Cyanide

    • C.

      Carbon Monoxide

    • D.

      Carbonic acid

    • E.

      Plastic

    Correct Answer
    E. Plastic
    Explanation
    Plastic usually contain 70-98% of carbon.

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