CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2003

  • question_answer
    Thomas slag is ...

    A)  \[CaSi{{O}_{3}}\]                            

    B)  \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\]

    C)  \[MnSi{{O}_{3}}\]                          

    D)  \[CaC{{O}_{3}}\]

    Correct Answer: B

    Solution :

    Thomas slag is \[C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\]. It is used as a fertilizer. It has 14-18% of \[{{P}_{2}}{{O}_{5}}\]. \[6CaO+{{P}_{4}}{{O}_{10}}\xrightarrow{{}}2C{{a}_{3}}{{(P{{O}_{4}})}_{2}}\]    phosphatic slag or Thomas slag


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