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AIIMS AIIMS Solved Paper-2006

  • question_answer
    Borax is used as cleansing because on dissolving in water it gives:

    A)  alkaline solution

    B)  acidic solution

    C)  bleaching solution

    D)  colloidal solution

    Correct Answer: A

    Solution :

    Borax on dissolving in water, gives alkaline solution. \[N{{a}_{2}}{{B}_{4}}{{O}_{7}}+7{{H}_{2}}O\xrightarrow{{}}4{{H}_{3}}B{{O}_{3}}+2N{{a}^{+}}+2O{{H}^{-}}\]


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