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Carboxylic Acid & Derivatives Test - 12

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Carboxylic Acid & Derivatives Test - 12
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  • Question 1
    1 / -0

    When propanamide reacts with Br2​ and NaOH then which of the following compound is formed?

    Solution

    Hofmann bromamide reaction-

     

  • Question 2
    1 / -0

    Pick out the unsaturated fatty acid from the following.

    Solution

    Except oleic acid stearic acid, Lauric acid and Palmitic acid are saturated fatty acid. Oleic acid is unsaturated fatty acid.

     

  • Question 3
    1 / -0

    The IUPAC name of caproic acid is:

    Solution

    Hexanoic acid, also known as caproic acid, is the carboxylic acid derived from hexane with the chemical formula CH3​(CH2​)4​COOH.

     

  • Question 4
    1 / -0

    In the presence of aluminium ethoxide, aldehydes get converted into esters. The reaction is known as

    Solution

     

  • Question 5
    1 / -0

    When acetamide reacts with Br2 and caustic soda, then we get

    Solution

    Inpresence of Br2, KOH

    CH3CONH2 → CH3NH2 ( methyl amine)

     

  • Question 6
    1 / -0

    The acid produced (A) in the sequence given below is

    Solution

     

  • Question 7
    1 / -0

    Which of the following statements is NOT TRUE?

    Solution

    The statement (A) is not true. Acetic acid is weaker than chloro acetic acid.

    In Chloro acetic acid, due to the presence of chloro group (- I effect) stabilization of carboxylate ion increases. Hence it is more acidic than acetic acid.

     

  • Question 8
    1 / -0

    The reaction product of the compound 'A' with excess of methyl magnesium iodide followed by acidification yields t-butanol. The compound A is

    Solution

     

  • Question 9
    1 / -0

    The products of acid hydrolysis of P and Q can be distinguished by :

    Solution

    Fehling's solution oxidizes aldehydes to acids. But ketones are not oxidized by Fehling's solution as they do not contain a hydrogen atom directly attached to the carbonyl group.

    The hydrolysis of compound P gives a ketone acetophenone which is not oxidized by Fehling's solution.

    On the other hand, the hydrolysis of the compound Q gives an aldehyde which is oxidized by Fehling's solution. Hence, the product of acid hydrolysis of P and Q can be distinguished by Fehling's solution.

    The reactions are shown below:

     

  • Question 10
    1 / -0

    Hydrogenation of C6H5CHOHCOOH over Rh-Al2O3 catalyst in methanol gives

    Solution

     

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