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Hydrocarbons Te...

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  • Question 1
    4 / -1

    The electrophile in sulphonation of benzene using fuming sulphuric acid is

  • Question 2
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    In nitration of benzene using cone. H2SO4 and cone. HNO3, the role of nitric acid is

  • Question 3
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    The increasing order of reactivity of the following compounds towards electrophilic aromatic substitution reaction is

  • Question 4
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    What is the correct increasing order of reactivity of the following compounds towards electrophilic aromatic substitution reaction?

  • Question 5
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    What is major product of the reaction below?

  • Question 6
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    Predict major product of the following reaction.

  • Question 7
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    Which of the following act as electrophile in halogenation?

  • Question 8
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    Identify the correct order of reactivity of following towards aromatic electrophilic substitution reaction.

    I. Toluene
    II. Benzene
    III. Chlorobenzene
    IV. Nitrobenzene

  • Question 9
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    Predict the major product in the following reaction.

    [IIT JEE 2001]

  • Question 10
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    What is true about sulphonation of C6H6?

  • Question 11
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    During nitration of benzene, the active nitrating agent is:

     

  • Question 12
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    The halogen which is most reactive in the halogenation of alkanes under sunlight is:

  • Question 13
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    Necessary condition for halogenation in benzene is:

     

  • Question 14
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     Which among these is not a representative arene compound?

  • Question 15
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    Nitration of benzene by nitric acid and sulphuric acid is:

     

  • Question 16
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    Direction (Q. Nos. 16 - 21) This section contains 2 paragraphs, each describing theory, experiments, data, etc. Six questions related to the paragraphs have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

    Passage I

    Consider the following road-map reaction,

     

    Q. The most likely structure of A is

  • Question 17
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    Passage I

    Consider the following road-map reaction,

     

    Q. What is correct about D?

  • Question 18
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    Passage I

    Consider the following road-map reaction,

     

    Q. If A is treated with cone. HNO3 and cone. H2SO4 mixture, mononitration at phenyl ring takes place. What is the structure of major nitration product?

  • Question 19
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    Passage II

    Consider the following road-map reaction,

     

    Q. The most likely structure of A is

  • Question 20
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    Passage II

    Consider the following road-map reaction,

     

    Q. What is true about C?

  • Question 21
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    Passage II

    Consider the following road-map reaction,

     

    Q. What is the structure of E?

  • Question 22
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    Direction (Q. No. 22 - 25) This section contains 4 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

    Q. C6H4Br2(P) is a dibromo benzene and it is the less polar isomer of its two polar isomers. If P is treated with conc. HNO3 and conc -H2SO4 mixture, in principle, how many mono nitration products are expected?

     

  • Question 23
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    How many isomers of C7H8O exists that has a phenyl ring?

     

  • Question 24
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    If the following compound is treated with Br2-Fe, how many mono bromination products are formed in principle?

     

  • Question 25
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    How many of the following have an activated aromatic ring for electrophilic substitution reaction?


     

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