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Set 6 of 9 · Questions 151-180 of 264

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NEET Chemistry · Aldehydes & Ketones · Set 6 (Q151-180)

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  1. 151.
    The main reduction product of the following compound with in methanol is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 152.
    Consider the following reaction sequence : N

    The product ' ' is.:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  3. 153.
    Identify the reagents used for the following conversion
    1. (1), ethylene glycol
    2. (2)
    3. (3) DIBAL-H, B , , ethylene glycol
    4. (4)
  4. 154.
    The major products and in the following reactions are
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 155.
    Choose the correct option for structures of and , respectively
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 156.
    The final product 'A' in the following reaction sequence
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 157.
    Nitration of phenyl benzoate yields the product
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 158.
    Identify the product ' ' in the following reaction. Dry ice
    1. (1)Methanoic acid
    2. (2)Ethanoic acid
    3. (3)Methanol
    4. (4)Ethanol
  9. 159.
    For the reaction given below :

    The compound which is formed as a product in the reaction is a :
    1. (1)compound with both alcohol and acid functional groups
    2. (2)monocarboxylic acid
    3. (3)dicarboxylic acid
    4. (4)diol
  10. 160.
    The structures of A and B formed in the following reaction are :
    [Ph=-]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 161.
    The product of below reaction sequence
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  12. 162.
    The oxidation of toluene with in the presence of gives a product which on treatment with aqueous produces
    1. (1)
    2. (2)2, 4‐diacetyl toluene
    3. (3)
    4. (4)
  13. 163.
    Which one of the following used for purification of aldehydes?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  14. 164.
    The major products formed in the following reaction sequence A and B are :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  15. 165.
    What is in the reaction given below?

    4-methyl-pent-3-en-2-one
    1. (1)Propanone
    2. (2)Ethanamine
    3. (3)Ethane nitrile
    4. (4)Ethane
  16. 166.
    Identify the major product formed from the following
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 167.
    The oxidation of benzene by in the presence of air produces
    1. (1)maleic anhydride
    2. (2)benzoic acid
    3. (3)benzaldehyde
    4. (4)benzoic anhydride
  18. 168.
    In which of the following reactions, the product is not correct?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  19. 169.
    An ester (a) with molecular formula , was treated with excess of
    and the complex so formed, was treated with to give an olefin (b) . Ozonolysis of (b) gave a ketone with molecular formula which shows iodoform test. The structure of (a) is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  20. 170.
    Consider the following reaction,The product is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 171.
    The above shown polymer is obtained when a carbonyl compound is allowed to stand. It is a white solid. The polymer is
    1. (1)trioxane
    2. (2)formose
    3. (3)paraformaldehyde
    4. (4)metaldehyde
  22. 172.
    The product formed by the reaction of an aldehyde with a primary amine is
    1. (1)carboxylic acid
    2. (2)aromatic acid
    3. (3)Schiff’s base
    4. (4)ketone
  23. 173.
    Identify the major product of the given reaction
    1. (1)Benzoyl bromide
    2. (2)Bromobenzene
    3. (3)4-bromo benzoic acid
    4. (4)3-bromo benzoic acid
  24. 174.
    Residue (dil) → Compound (B)
    Structure of residue (A) and compound (B) formed respectively is. [A] [B]
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  25. 175.
    Which of the following represent the structure of methyl hemiacetal of formaldehyde?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 176.
    Reaction between acetone and methyl-magnesium bromide followed by hydrolysis will give
    [NEET 2020]
    1. (1)sec-butyl alcohol
    2. (2)tert-butyl alcohol
    3. (3)iso-butyl alcohol
    4. (4)iso-propyl alcohol
  27. 177.
    The major organic product formed from the following reaction:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  28. 178.
    In the following sequence of reactions, the final product D is :
    1. (1)
    2. (2) − CH = CH − − − − COOH
    3. (3)C − CH = CH − CH(OH) − − −
    4. (4)
  29. 179.
    Identify the product in the following reaction :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 180.

    What is in the above reaction? [NEET 2022]
    1. (1)
    2. (2)
    3. (3)
    4. (4)