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JEE Main & Advanced Chemistry The s-Block Elements / s-ब्लॉक के तत्व Question Bank Alkali Metals

  • question_answer
    The reagent commonly used to determine hardness of water titrimetrically is [AIIMS 2003]

    A) Oxalic acid

    B) Disodium salt of EDTA

    C) Sodium citrate

    D) Sodium thiosulphate

    Correct Answer: B

    Solution :

    It form calcium and magnesium complex with EDTA salt.


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