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Set 8 of 9 · Questions 211-240 of 261

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NEET Chemistry · Haloalkanes & Haloarenes · Set 8 (Q211-240)

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  1. 211.
    Which of the following is obtained by the following reaction?
    1. (1)Butane
    2. (2)Propane
    3. (3)Ethane
    4. (4)Methane
  2. 212.
    The alkyl halide is converted into an alcohol by
    1. (1)elimination
    2. (2)dehydrohalogenation
    3. (3)addition
    4. (4)substitution.
  3. 213.
    Benzene reacts with ‐propyl chloride inthe presence of anhydrous to give
    1. (1)3‐propyl‐l‐chlorobenzene
    2. (2)‐propylbenzene
    3. (3)no reaction
    4. (4)isopropylbenzene.
  4. 214.
    The correct order of rates of bond ionisations of the following bromides is
    1. (1)(i) (ii) (iii)
    2. (2)(ii) (iii) (i)
    3. (3)(i) (iii) (ii)
    4. (4)(ii) (i) (iii)
  5. 215.
    Which of the following is an ambident nucleophile?
    1. (1)Ammonia
    2. (2)Chloride ion
    3. (3)Water
    4. (4)Cyanide ion
  6. 216.
    The major product of the following reaction is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  7. 217.
    The compound undergoes thefollowing reactions:

    The product is.
    1. (1)‐bromotoluene
    2. (2)‐bromotoluene
    3. (3)3‐bromo‐2,4,6‐trichlorotoluene
    4. (4)‐bromotoluene.
  8. 218.
    The correct arrangement for decreasing order of electrophilic substitution for above compounds is :
    1. (1)(III) (I) (II) (IV)
    2. (2)(IV) (I) (II) (III)
    3. (3)(III) (IV) (II) (I)
    4. (4)(II) (IV) (III) (I)
  9. 219.
    The final product , formed in the following multistep reaction sequence is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  10. 220.
    What is in the following sequence of reactions?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 221.
    The major product in the following reactions is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  12. 222.
    The major product in the following reaction is:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  13. 223.
    Identify the major product in the following reaction.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  14. 224.
    A Bromophenyl acetic acid.
    In the above reaction 'A' is Br
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  15. 225.
    2-bromopentane is heated with potassium ethoxide in ethanol. The major product is
    1. (1)trans-pent-2-ene
    2. (2)2-ethoxypentane
    3. (3)pent-1-ene
    4. (4)3-ethoxypentane
  16. 226.
    Which of the following compound is expected to be optically active?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  17. 227.
    Identify and in the following sequence of reaction
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  18. 228.
    The reaction of 1-bromohexane with aqueous solution follows the order
    1. (1)zero order kinetics
    2. (2)first order kinetics
    3. (3)second order kinetics
    4. (4). third order kinetics
  19. 229.
    What is in the following sequence of reaction?
    1. (1)Propane
    2. (2)2-methyl propene
    3. (3)2-methyl propane
    4. (4)2-methyl butane
  20. 230.
    Identify the compound ' ' in the following series of reactions:
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 231.
    The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is :
    1. (1)D < A < C < B
    2. (2)B < C < A < D
    3. (3)A < B < C < D
    4. (4)D < B < A < C
  22. 232.
    The compound which is not formed when a mixture of -butyl bromide and ethyl bromide treated with sodium metal in presence of dry ether is
    1. (1)butane
    2. (2)octane
    3. (3)hexane
    4. (4)ethane.
  23. 233.
    Two isomers (a) and (b) with Molar mass 184 g/mol and elemental composition C, 52.2%; H, 4.9% and Br 42.9% gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with . Isomer ' is optically active and gives a pale yellow precipitate when warmed with alcoholic . Isomer 'A' and 'B' are, respectively :
    1. (1)C-CHBr- and
    2. (2)
    3. (3)C-CHBr- and
    4. (4)and C-CHBr-
  24. 234.
    What is the IUPAC name of the following compound?
    1. (1)2-Bromo-4,4,6-trimethyl octane
    2. (2)3-Bromo-5,5,7-trimethyl octane
    3. (3)2-Bromo-4,4,6-trimethyl nonane
    4. (4)3-Bromo-5,5,7-trimethyl nonane
  25. 235.
    The major product (P) in the reaction

    [Ph is – ] is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 236.
    Compound 'A' undergoes following sequence of reactions to give compound 'B'. The correct structure and chirality of compound 'B' is: [where Et is -]

    Compound ‘A’
    1. (1), Achiral
    2. (2), Chiral
    3. (3), Chiral
    4. (4), Achiral
  27. 237.
    In the following sequence of reactions the is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  28. 238.
    The major product obtained in the given reaction is :
    Product
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  29. 239.
    Sodium tertiary butoxide on reaction with methyl bromide produced the product .
    Sodium methoxide upon reaction with tertiary butyl bromide generated the product .
    The products and are
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 240.
    The product and formed in above reactions are
    1. (1)
    2. (2)
    3. (3)
    4. (4)