DUMET Medical DUMET Medical Solved Paper-2006

  • question_answer
    Which of the following is not silicate?

    A)  Zeolite         

    B)  Feldspar

    C)  Silica

    D)  Ultramarine

    Correct Answer: C

    Solution :

    Silica is silicon dioxide Si02. It is not a silicate. Feldspar\[-KAlS{{i}_{3}}{{O}_{8}}\] Zeolite \[-N{{a}_{2}}A{{l}_{2}}Si{{O}_{8}}x{{H}_{2}}O\] Ultramarine \[N{{a}_{8}}{{(Al{{O}_{2}})}_{6}}{{(Si{{O}_{2}})}_{6}}{{S}_{2}}\] Other all three are silicates.


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