JEE Main & Advanced Sample Paper JEE Main Sample Paper-35

  • question_answer
    Each pair has been matched with the suitable reagent used for making distinction. Which pair has been matched wrongly?

    A)
    Pair                                          Reagent
     \[CH=C{{H}_{2}},C{{H}_{3}}-C{{H}_{3}}\]            Bayer's reagent

    B)
    Pair                                          Reagent
     \[C{{H}_{3}}-C{{H}_{2}}-CH=C{{H}_{3}}-CH\equiv C-C{{H}_{3}}\]   Br, water

    C)
    Pair                                          Reagent
     \[C{{H}_{3}}-C{{H}_{2}}-C\equiv CH,C{{H}_{3}}-CH\equiv C-C{{H}_{3}}\] \[AgN{{O}_{3}}/N{{H}_{4}}OH\]

    D)
    Pair                                          Reagent
          Neutral \[FeC{{l}_{3}}\]

    Correct Answer: B

    Solution :

    Both \[C{{H}_{3}}-C{{H}_{2}}-CH\,=C{{H}_{2}}\] and \[C{{H}_{3}}-C\equiv C-C{{H}_{3}}\] react with \[B{{r}_{2}}\] water.


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