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Set 12 of 16 · Questions 331-360 of 459

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JEE Main Chemistry · Hydrocarbons · Set 12 (Q331-360)

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  1. 331.
    Product 'A' of following sequence of reactions is Ethylbenzene 'A'(Major product)
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 332.
    In the following reaction,

    Compound (A) and (B) respectively are
    1. (1)Nitrobenzene and fluorobenzen
    2. (2)Phenol and benzene
    3. (3)Benzene diazonium chloride and fluorobenzene
    4. (4)Nitrobenzene and chlorobenzene
  3. 333.
    The electrolytic reduction of nitrobenzene in strongly acidic medium produces :
    1. (1)Anoxybenzene
    2. (2)Azobenzene
    3. (3)Aniline
    4. (4)p-Aminophenol
  4. 334.
    Predict the major product of the following reaction sequence:-
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  5. 335.
    Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid and not delocalized.)
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  6. 336.
    Of the five isomeric hexanes, the isomer which can give two monochlorinated compound is
    1. (1)n - hexane
    2. (2)2,3 - dimethylbutane
    3. (3)2,2 - dimethylbutane
    4. (4)2 - methylpentane
  7. 337.
    In the reaction the intermediate (s) is (are)
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  8. 338.
    The major product (A) formed in the reaction given below is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  9. 339.
    Choose the correct set of reagents for the following conversion
    trans (Ph-CH=CH-) cis (Ph-CH=CH-)
    1. (1), alcKOH, ,Na()
    2. (2), alcKOH,, Lindlar Catalyst
    3. (3), aqKOH,,Lindlar Catalyst
    4. (4),aqKOH,,Na()
  10. 340.
    In the chemical reactions given above A and B respectively are:
    1. (1)and
    2. (2)and
    3. (3)and
    4. (4)and
  11. 341.
    2‐Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is
    1. (1)trans‐2‐pentene
    2. (2)1‐pentene
    3. (3)‐ethoxy pentane
    4. (4)2‐cis‐pentene.
  12. 342.
    In the following reaction

    The major product is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  13. 343.
    Identify ' ' in the following reaction.
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  14. 344.
    In which of the following compounds, the C–Cl bond ionisation shall give most stable carbonium ion ?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  15. 345.
    The major product formed in the following reaction is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  16. 346.
    Which of the following reactions is appropriate for converting acetamide to methanamine ?
    1. (1)Carbylamine reaction
    2. (2)Hoffmann hypobromamide reaction
    3. (3)Stephens reaction
    4. (4)Gabriels phthalimide synthesis
  17. 347.
    In the reaction with , an alkene reacts in accordance with the
    Markovnikov’s rule to give a product l‐chloro‐l‐methylcyclohexane. The possible alkene is
    1. (1)
    2. (2)
    3. (3)(A) and (B)
    4. (4)
  18. 348.
    In the reaction the compound (A) is known as :
    C6H5CHO + C6H5NH2 C6H5N = CHC6H5 + H2O
    (A)
    1. (1)Aldol
    2. (2)Schiff base
    3. (3)Schiff reagent
    4. (4)Benedict's reagent
  19. 349.
    What is the major product formed by HI on reaction with ?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  20. 350.
    The final major product of the following reaction is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  21. 351.
    What will be the major product of following sequence of reactions?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  22. 352.
    In the following reaction sequence,

    the major product B is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  23. 353.
    Phenol on treatment with in the presence of NaOH followed by acidification produces compound X as the major product. X on treatment with O in the presence of catalytic amount of produces :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  24. 354.
    consider the above reaction, and choose the correct statement:
    1. (1)The reaction is not possible in acidic medium
    2. (2)Both compounds A and B are formed equally
    3. (3)Compound A will be the major product
    4. (4)Compound B will be the major product
  25. 355.
    A given nitrogen-containing aromatic compound A reacts with Sn/HCl, followed by HNO2 to give an unstable compound B. B, on treatment with phenol, forms a beautiful coloured compound C with the molecular formula C12H10N2O. The structure of compound A is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  26. 356.
    Nitrobenzene on reaction with conc. HNO3 /H2SO4 at 80 – 100ºC forms which one of the following products ?
    1. (1)1, 3– Dinitrobenzene
    2. (2)1, 4– Dinitrobenzene
    3. (3)1, 2, 4– Trinitobenzene
    4. (4)1, 2– Dinitrobenzene
  27. 357.
    The correct sequence of correct reagents for the following transformation is :-
    1. (1)(i) Fe, HCl (ii) , (iii) (iv)
    2. (2)(i) Fe, HCl (ii) (iii) (iv)
    3. (3)(i) (ii) Fe, HCl (iii) (iv)
    4. (4)(i) (ii) (iii) Fe, HCl (iv)
  28. 358.
    Which of the compound with molecular formula yields acetone on ozonolysis?
    1. (1)3‐Methyl ‐butene
    2. (2)Cyclopentane
    3. (3)2‐Methyl‐l‐butene
    4. (4)2‐Methyl‐2‐butene
  29. 359.
    An alkene on ozonolysis gives methanal as one of the product. Its structure is :
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  30. 360.
    Total number of isomeric compounds (including stereoisomers) formed by monochlorination of 2 methylbutane is_______