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Amines Test - 6

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Amines Test - 6
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Aniline on treatment with sodium hypochlorite gives:

    Solution

    The correct answer is Option C.

  • Question 2
    1 / -0

    Which of the following reaction is not given by aniline?

    Solution

  • Question 3
    1 / -0

     Which one of the following is the weakest base in gaseous phase?

    Solution

     

    As the number of alkyl group increases, due to +I effect the basicity of amines increases.

  • Question 4
    1 / -0

    The reaction of primary amine with Chloroform and ethanoic solution of KOH is called:

    Solution

    The carbylamine reaction, also known as Hoffman's isocyanide test is a chemical test for detection of primary amines. In this reaction, the analyte is heated with alcoholic potassium hydroxide and chloroform. If a primary amine is present, the isocyanide (carbylamine) is formed which are foul smelling substances.

  • Question 5
    1 / -0

    Which of the following amine liberates nitrogen gas on reaction with HNO2 ?

    Solution

    The correct answer is Option D.
    Only primary amines liberate nitrogen gas on reaction with HNO2.

  • Question 6
    1 / -0

    Hoffmann Bromamide Degradation reaction is shown by __________.

    Solution

    The Correct answer is option B
    Hoffman bromamide degradation reaction is shown by ArCONH2​.
    Where the aryl amide is converted to aryl amine in the presence of Br2​ and NaOH

  • Question 7
    1 / -0

    Which one of the following is a tertiary amine?

    Solution

    The correct answer is Option B.


    Aniline : 

  • Question 8
    1 / -0

     Amines are basic in nature as they have:

    Solution

    The correct answer is Option B.
    Amines are basic in nature because the nitrogen atom in amines possesses a lone pair that can be donated.

    According to the Lewis acid-base concept, amines can donate an electron pair, so they are Lewis bases.

    Also, Brønsted-Lowry bases can accept a proton to form substituted ammonium ions.
    So, amines are bases according to both the Lewis and the Brønsted-Lowry theories.

  • Question 9
    1 / -0

     Which of the following has highest boiling point?

    Solution

    The correct answer is Option D.

    Because C4H9NH2 is primary amine and can form hydrogen bonding more than secondary amine (C2H5)2NH and tertiary amine C2H5N(CH3)2 . More hydrogen bonding  leads to strong bonding between the molecules, hence increases the boiling point.

  • Question 10
    1 / -0

    Methylamine reacts with HNO2 to form _________.

    Solution

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