Back to Carboxylic Acids & Derivatives

Set 5 of 7 · Questions 121-150 of 181

In the print window choose “Save as PDF”. The file prints without a web address or date line.

Mere Teacher

Mere Teacher · Previous Year Questions

JEE Main Chemistry · Carboxylic Acids & Derivatives · Set 5 (Q121-150)

QR code to mereteacher.com

Scan or visit mereteacher.com for free PYQ practice, timed CBT tests, step-by-step solutions and BroBot AI. Answers and solutions are free with a sign-up.

  1. 121.
    The major product of the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 122.
    Consider the following reaction :

    The product 'A' is :
    1. (1)C6H5CHO
    2. (2)C6H5OH
    3. (3)C6H5COCH3
    4. (4)C6H5Cl
  3. 123.
    Benzoic acid gives benzene on being heated with and phenol gives benzene on being heated with . Therefore, and are respectively
    1. (1)soda‐lime and copper
    2. (2)Zn dust and NaOH
    3. (3)Zn dust and soda‐lime
    4. (4)soda‐lime and zinc dust.
  4. 124.
    In a set of reactions ‐bromobenzoic acid gave a product . Identify the product
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 125.
    The major product in the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 126.
    The major product ‘Y’ in the following reaction is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 127.
    In the following sequence of reactions,

    the alkene affords the compound 'B' The compound B is
    1. (1)CH3COCH3
    2. (2)CH3CH2COCH3
    3. (3)CH3CHO
    4. (4)CH3CH2CHO
  8. 128.
    The correct match between Item-I (starting material) and Item- (reagent) for the preparation of benzaldehvde is

    Item-

    Item-
    (I)
    Benzene
    (P)
    and ,
    (II)
    Benzonitrile
    (Q)
    and quinoline
    (III)
    Benzoyl Chloride
    (R)
    and
    1. (1) and
    2. (2) and
    3. (3) and (III)-(P)
    4. (4) and (III)-(P)
  9. 129.
    The correct sequential addition of reagents in the preparation of -nitrobenzoic acid from benzene is:
    1. (1)/,/,Mg/ ether, ,
    2. (2)/,NaCN,,/
    3. (3)/,/,NaCN,
    4. (4)/,/,Mg/ ether, ,
  10. 130.
    Compound (X) undergoes following sequence of reactions to give the Lactone (Y).
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 131.
    Consider the above reaction and predict the major product.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  12. 132.
    Which reactant will give the following alcohol on reaction with one mole of phenyl magnesium bromide (PhMgBr) followed by acidic hydrolysis ?
    1. (1)CH - C N
    2. (2)Ph - C N
    3. (3)
    4. (4)
  13. 133.
    Maleic anhydride Maleic anhydride can be prepared by :
    1. (1)Heating trans-but-2-enedioic acid
    2. (2)Heating cis-but-2-enedioic acid
    3. (3)Treating cis-but-2-enedioic acid with alcohol and acid
    4. (4)Treating trans-but-2-enedioic acid with alcoholand acid
  14. 134.
    Cyclohexylamine when treated with nitrous acid yields (P). On treating (P) with PCC results in (Q). When (Q) is heated with dil. NaOH we get (R) The final product (R) is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  15. 135.
    Acetone is treated with excess of ethanol in the presence of hydrochloric acid. The product obtained is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  16. 136.
    Identify the product in the following reaction:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 137.
    The number of and -bonds in 2 -formylbenzoic acid are respectively
    1. (1)10,3
    2. (2)14,3
    3. (3)12,5
    4. (4)17,5
  18. 138.
    In this reaction :
    CH3CHO + HCN → CH3CH (OH)CN CH3CH(OH)COOH
    an asymmetric centre is generated. The acid obtained would be :
    1. (1)D-isomer
    2. (2)L-isomer
    3. (3)50% D + 50% L-isomer
    4. (4)20% D + 80% L-isomer
  19. 139.
    In a reaction,

    reagents 'X' and ' Y' respectively are :
    1. (1)O/ and OH/,
    2. (2)O/ and O/
    3. (3)OH/, and OH/,
    4. (4)OH/ and O/
  20. 140.
    In the above reaction, the reagent is:
    1. (1)
    2. (2)
    3. (3)Alkaline
    4. (4)
  21. 141.
    Identify major product ' ' formed in the following reaction.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  22. 142.
    Which one of the following product is formed when adipic acid is heated?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  23. 143.
    The number of compound/s given below which contain/s - COOH group is :
    1. (1)Sulphanilic acid
    2. (2)Picric acid
    3. (3)Aspirin
    4. (4)Ascorbic acid
  24. 144.
    Consider the reaction

    Identify A, X, Y and Z
    1. (1)A–Methoxymethane, X–Ethanoic acid, Y–Acetate ion, Z–hydrazine.
    2. (2)A–Methoxymethane, X–Ethanol, Y–Ethanoic acid, Z–Semicarbazide.
    3. (3)A–Ethanal, X– Ethanol, Y–But–2–enal, Z-Semicarbazone.
    4. (4)A–Ethanol, X-Acetaldehyde, Y-Butanone, Z-Hydrazone.
  25. 145.
    The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is
    1. (1)
    2. (2)
    3. (3)MnO
    4. (4)
  26. 146.
    In a set of the given reactions, acetic acid yielded a product

    Product would be
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 147.
    End product of the following reaction is :
    CH3CH2COOH
    1. (1)
    2. (2)
    3. (3)CH2 = CHCOOH
    4. (4)
  28. 148.
    Decarboxylation of all six possible forms of diaminobenzoic acids COOH yields three products A, B and C. Three acids give a product 'A', two acids gives a product 'B' and one acid give a product 'C'. The melting point of product 'C' is
    1. (1)63°C
    2. (2)90°C
    3. (3)104°C
    4. (4)142'C
  29. 149.
    A trisubstituted compound ‘A’, gives neutral test positive. Treatment of compound 'A' with NaOH and Br gives , with hydroiodic acid gives methyl iodide and with hot cone. NaOH gives a compound B, . Compound 'A' also decolorises alkaline . The number of bond/s present in the compound 'A' is_______.
  30. 150.
    The product in the following sequence of reactions has______ bonds.