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Carboxylic Acid & Derivatives Test - 3

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Carboxylic Acid & Derivatives Test - 3
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Which of the following is optically active?

    Solution

    Tartaric acid has chiral carbon (*) atoms. So it is optically active.

     

  • Question 2
    1 / -0

    Which of the following structure of carboxylic acid accounts for the acidic nature?

    Solution

     

  • Question 3
    1 / -0

    Urea

    Solution

    Urea is the diamide of carbonic acid.

     

  • Question 4
    1 / -0

    Which of the following acids is isomeric whh phthalic acid?

    Solution

    Phthalic acid is the isomer of 1, 4-benzenedicarboxylic acid because both have the same molecular formula but differ in their structure.

     

  • Question 5
    1 / -0

    Which of these do not contain -COOH group?

    Solution

     

  • Question 6
    1 / -0

    Which is most reactive of the following?

    Solution

    The order of reactivity of acid derivatives towards different reactions decreases in the order, RCOCl > (RC0)2 0> RCOOR > RCONH2 In other words, the reactivity decreases as the basicity of the leaving group increases i.e.,

     

     

  • Question 7
    1 / -0

    Reimer-Tiemann reaction involves a

    Solution

    Reimer-Tiemann reaction involves a carbene intermediate.

     

  • Question 8
    1 / -0

    Glacial acetic acid is obtained by

    Solution

    Acetic acid freezes at l 6.6°C while water freezes at 0°C. So glacial acetic acid is obtained by crystallizing, separating and melting acetic acid.

     

  • Question 9
    1 / -0

    Ethyl acetate is obtained when methyl magnesium iodide reacts with

    Solution

     

  • Question 10
    1 / -0

    Which reaction is used for preparation of a-bromoacetic acid?

    Solution

    When Cl2 or Br2 reacts with carboxylic acid in the presence of red phosphorus, u -hydrogen of carboxylic acid is replaced by Cl or Br.

    This reaction is known as Heli-Volhard-Zelinsky reaction.

     

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