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NEET AIPMT SOLVED PAPER SCREENING 2005

  • question_answer
                    Which one of the following forms micelles in aqueous solution above certain concentration?

    A)                                                                                                                                                                                            Urea                                                     

    B)                 Dodecyl trimethyl ammonium chloride

    C)                 Pyridinium chloride                                        

    D)                 Glucose

    Correct Answer: B

    Solution :

                    Surfactants detergents form micelles in aqueous solution above to their C.M.C (critical micelle concentration). Dodecyl trimethyl ammonium chloride is an example of surfactant (cationic surfactant), so it shows a following phenomena.                 Untitled-1


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