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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Mock Test - Surface Chemistry

  • question_answer
    Milk can be preserved by adding a few drops of

    A) Formic acid solution

    B) formaldehyde solution

    C) Acetic acid solution

    D) Acetaldehyde solution

    Correct Answer: B

    Solution :

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


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