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Set 10 of 15 · Questions 271-300 of 435

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NEET Chemistry · Hydrocarbons · Set 10 (Q271-300)

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  1. 271.
    An aromatic compound ‘A’ having molecular formula on treating with aqueous ammonia and heating forms compounds ‘B’. The compound B on reaction with molecular bromine and potassium hydroxide provides compound ‘C’ having molecular formula N. The structure of ‘A’ is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 272.
    The major product in the following sequence of reactions is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  3. 273.
    In the above chemical reaction sequence " " and " " respectively are
    1. (1)H2O,H+and
    2. (2) and
    3. (3) and
    4. (4)H2O,H+and
  4. 274.
    The major product formed in the following reaction is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 275.
    The final product , formed in the following reaction sequence is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 276.
    The major products and in the following reactions, respectively, are


    1. (1)Alkene (cis)
      Alkene (cis)
    2. (2)Alkane
      Alkene (trans)
    3. (3)Alkene (cis)
      Alkene (trans)
    4. (4)Alkene (trans)
      Alkene (trans)
  7. 277.
    Number of possible alkynes with formula is
    1. (1)3
    2. (2)5
    3. (3)2
    4. (4)4
  8. 278.
    Phenol reacts with methyl chloroformate in the presence of NaOH to form product A. A react with to form product B. A and B are respectively:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  9. 279.
    Choose the correct option for the following reactions.
    1. (1)'A' and 'B' are both Markovnikov addition products.
    2. (2)'A' is Markovnikov product and ET is anti-Markovnikov product.
    3. (3)'A' and 'B' are both anti-Markovnikov products.
    4. (4)'B' is Markovnikov and 'A' is anti-Markovnikov product.
  10. 280.
    The major product in the following reactions is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 281.
    Consider the following reaction:

    The product Y formed is:
    1. (1)5-methylhex-2-yne
    2. (2)Isopropylbut-1-yne
    3. (3)2-methylhex-3-yne
    4. (4)2-methylhex-2-yne
  12. 282.
    In Friedel-Crafts alkylation of aniline, one gets :
    1. (1)alkylated product with ortho and para substitution.
    2. (2)secondary amine after acidic treatment.
    3. (3)an amide product.
    4. (4)positively charged nitrogen at benzene ring.
  13. 283.
    An organic compound A upon reacting with gives B. On heating B gives C. C in presence of KOH reacts with to given . A is :
    1. (1)COOH
    2. (2)COOH
    3. (3)
    4. (4)COOH
  14. 284.
    An alkene on ozonlysis gave acetaldehyde and ethyl methyl ketone. What is the product formed when reacts with ?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  15. 285.
    The product(s) of the following reaction sequence is(are)
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  16. 286.
    Identify and in the following reaction sequence
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 287.
    The product(s) formed when toluene is reacted with in presence of in dark is/are
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  18. 288.
    Reaction of 2-methylbuta-1, 3-diene with and , gives
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  19. 289.
    Identify and in the following reaction sequence.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  20. 290.
    What are the suitable conditions for the following transformation?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 291.
    Which of the following reactions is not correct?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  22. 292.
    The major product of the following reaction is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  23. 293.
    What is is the following reaction sequence?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  24. 294.
    2,3‐Dimethyl‐2‐butene can be prepared by heating which of the following
    compounds with a strong acid?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  25. 295.
    In a reaction of aniline a coloured products C was obtained. The structure of C would be :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 296.
    In the following reaction sequence, is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  27. 297.
    The major products 'A' and 'B' respectively, areCH3
    A'«-^-C-C = -iga-VB' OH^ Lri^ CH~
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  28. 298.
    1-chloro-3-methylbutane on reaction with zinc and dilute hydrochloric acid gives______ as the major product.
    1. (1)2-methylbutane
    2. (2)2-methylbutene
    3. (3)n-pentane
    4. (4)n-pentene
  29. 299.
    The major product of the following reaction is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 300.
    Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product ?
    1. (1)
    2. (2)
    3. (3)
    4. (4)