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  3. JEE Main & Advanced

JEE Main & Advanced Sample Paper JEE Main Sample Paper-27

  • question_answer
    The substance not likely to contain \[CaC{{O}_{3}}\] is :

    A)  calcined gypsum           

    B)  sea shells           

    C)  dolomite         

    D)  a marble statue

    Correct Answer: A

    Solution :

    Calcined gypsum is \[CaS{{O}_{4}}\] (burnt plaster); sea shells contain \[CaC{{O}_{3}}\] and \[{{K}_{2}}C{{O}_{3}};\] dolomite is \[MgC{{O}_{3}}.CaC{{O}_{3}}\] and marble contains \[CaC{{O}_{3}}\].


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