JEE Main & Advanced JEE Main Paper (Held On 11-Jan-2019 Morning)

  • question_answer
    Match the ores (column A) with the metals (column B).
    Column A (Ores)        Column B (Metals)
    (I) Siderite     [A] Zinc
    (II) Kaolinite    [B] Copper
    (III) Malachite      [C] Iron
    (IV)Calamine     [D] Aluminium
      [JEE Main Online Paper (Held On 11-Jan-2019 Morning]

    A) (I)-[B]; (II)-[C]; (III)-[D]; (IV)-[A]

    B) (I)-[A]; (II)-[B]; (III)-[C]; (IV)-[D]

    C) (I)-[C]; (II)-[D]; (III)-[B]; (IV)-[A]

    D) (I)-[C]; (II)-[D]; (III)-[A]; (IV)-[B]

    Correct Answer: C

    Solution :

               
    Siderite                \[FeC{{O}_{3}}\]
    Kaolinite               \[A{{l}_{2}}{{(OH)}_{4}}S{{i}_{2}}{{O}_{5}}\]
    Malachite              \[CuC{{O}_{3}}.Cu{{(OH)}_{2}}\]
    Calamine               \[ZnC{{O}_{3}}\]


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