RAJASTHAN PMT Rajasthan - PMT Solved Paper-1995

  • question_answer
    Which of the following will be obtained by mixing \[50%\] \[NaOH\] to bauxite?

    A)  \[Al{{(OH)}_{3}}\]

    B)  \[Al\]

    C)  \[Fe\]           

    D)  \[NaAl{{O}_{2}}\]

    Correct Answer: D

    Solution :

    \[A{{l}_{2}}{{O}_{3}}.2{{H}_{2}}O+2NaOH\xrightarrow{\Delta }\] \[\underset{Sod-\text{meta}\,\text{aluminate}}{\mathop{2NaAl{{O}_{2}}}}\,-3{{H}_{2}}O\]


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