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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Colloids Emulsion, Gel and Their properties with application

  • question_answer
    Milk can be preserved by adding a few drops of [MADT Bihar 1981]

    A)                 Formic acid solution

    B)                 Formaldehyde solution

    C)                 Acetic acid solution

    D)                 Acetaldehyde solution

    Correct Answer: B

    Solution :

                    Milk can be preserved by adding a few drops of HCHO solution. HCHO is an emulsifier.


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