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Set 2 of 7 · Questions 31-60 of 181

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JEE Main Chemistry · Carboxylic Acids & Derivatives · Set 2 (Q31-60)

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  1. 31.
    The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of
    1. (1)acid anhydride amide ester acyl chloride
    2. (2)acyl chloride ester acid anhydride amide
    3. (3)acyl chloride acid anhydride ester amide
    4. (4)ester acyl chloride amide acid anhydride
  2. 32.
    The decreasing order of acidic strength for following acids is:(A) (B) (C) (D)
    1. (1)B C A D
    2. (2)D C B A
    3. (3)D B C A
    4. (4)C D B A
  3. 33.
    The increasing order of acidity of the following carboxylic acids is
    1. (1)III IV II I
    2. (2)II III IV I
    3. (3)I II IV III
    4. (4)III IV I II
  4. 34.
    Ethyl benzoate can be prepared from benzoic acid by using
    1. (1)ethyl alcohol
    2. (2)ethyl alcohol and dry
    3. (3)ethyl chloride
    4. (4)sodium ethoxide.
  5. 35.
    The major product of the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 36.
    The reaction that does not give benzoic acid as the major product is [NEET 2019]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 37.
    The product formed in the following thermal reaction is [NEET 2021]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 38.
    The following species are involved in the formation of an ester from a carboxylic acid in the presence of acid. the correct sequence of formation of these species is
    1. (1)2143
    2. (2)4123
    3. (3)1432
    4. (4)2314
  9. 39.
    Following compounds are given
    (i) CH3CH2OH (ii) CH3COCH3
    (iii) (iv) CH3OH
    Which of the above compound (s), on being warmed with iodine solution and NaOH, will give iodoform?
    1. (1)(i), (iii) and (iv)
    2. (2)Only (ii)
    3. (3)(i), (ii) and (iii)
    4. (4)(i) and (ii)
  10. 40.
    Which of the following is used in perfumery?
    1. (1)Esters of benzoic acid
    2. (2)Ethanoic acid
    3. (3)Methanoic acid
    4. (4)Sodium benzoate
  11. 41.
    The decreasing order of ease of alkaline hydrolysis for the following esters is
    1. (1)III > II > IV > I
    2. (2)III > II > I > IV
    3. (3)IV > II > III > I
    4. (4)II > III > I > IV
  12. 42.
    Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid ?
    1. (1)Phenol
    2. (2)Benzoic acid
    3. (3)Butanal
    4. (4)Benzaldehyde
  13. 43.
    The major product 'P' formed in the following sequence of reactions is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  14. 44.
    Identify the incorrect statement regarding acetic acid.
    1. (1)Acetic acid is obtained when calcium acetate is distilled in the presence of calcium formate.
    2. (2)Acetic acid is used in curing meat and fish.
    3. (3)Anydrous acetic acid is known as glacial acetic acid because, it forms ice like solid below .
    4. (4)The catalyst used in the conversion of acetic acid to trichloroacetic acid is red phosphorus.
  15. 45.
    The product(s) formed when m-chlorobenzaldehyde is heated with concentrated is/are
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  16. 46.
    The acid which contains both and groups is
    1. (1)phthalic acid
    2. (2)adipic acid
    3. (3)glutaric acid
    4. (4)salicylic acid.
  17. 47.
    Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their
    1. (1)formation of intramolecular ‐bonding
    2. (2)formation of carboxylate ion
    3. (3)more extensive association of carboxylic acid via van der Waals’ forces of attraction
    4. (4)formation of intermolecular ‐bonding.
  18. 48.
    Which of the following reagent is suitable for the preparation of the product in the above reaction.
    1. (1)Red
    2. (2)
    3. (3)Ni/
    4. (4)
  19. 49.
    Identify compound (A) in the following reaction. [NEET 2020]
    A
    1. (1)Benzoyl chloride
    2. (2)Toluene
    3. (3)Acetophenone
    4. (4)Benzoic acid
  20. 50.
    The major product of the following reaction is: [NEET 2019]
    +
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 51.
    Among the compounds
    (i)
    (ii)
    (iii) and
    (iv)
    The correct order of acid strength is
    1. (1)(i) (ii) (iii) (iv)
    2. (2)(iv) (iii) (ii) (i)
    3. (3)(ii) (i) (iv) (iii)
    4. (4)(iii) (ii) (i) (iv)
  22. 52.
    Given below are two statements :
    Statement I: The esterification of carboxylic acid with an alcohol is a nucleophilic acyl substitution.
    Statement II : Electron withdrawing groups in the carboxylic acid will increase the rate of esterification reaction. Choose the most appropriate option :
    1. (1)Both Statement I and Statement II are correct.
    2. (2)Both Statement I and Statement n are incorrect.
    3. (3)Statement I is correct but Statement n is incorrect.
    4. (4)Statement I is incorrect but Statement n is correct
  23. 53.
    Arrange the following in increasing order of their acidic strength
    1. (1)A C D B
    2. (2)A C B D
    3. (3)D C A B
    4. (4)A B C D
  24. 54.
    If heavy water is taken as solvent instead of normal water while performing Cannizaro reaction, the products of the reaction are
    1. (1)RCOO– + RCH2OH
    2. (2)RCOO– + RCH2OD
    3. (3)RCOOD + RCD2OD
    4. (4)RCOO– + RCD2OD
  25. 55.
    The correct order of strengths of the carboxylic acidsis
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 56.
    An organic compound neither reacts with neutral ferric chloride solution nor with Fehling solution. It however, reacts with Grignard reagent and gives positive iodoform test. The compound is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 57.
    The compound formed on heating chlorobenzene with chloral in the presence of concentrated sulphuric acid is
    1. (1)gammexene
    2. (2)DDT
    3. (3)freon
    4. (4)hexachloroethane.
  28. 58.
    The correct order of strengths of the carboxylic acids [NEET 2016]
    is
    1. (1)I II III
    2. (2)II III I
    3. (3)III II I
    4. (4)II I III
  29. 59.
    Which of the following acid will form an (i) anhydride on heating and (ii) acid imide on
    strong heating with ammonia? [NEET 2020]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 60.
    Propionic acid with yields a dibromo product. Its structure would beBr
    1. (1)
    2. (2)
    3. (3)
    4. (4)