Surface ChemistryhardMCQ MULTIPLE

Which of the following standardly established experimental laboratory techniques can strictly and acSurface Chemistry Chemistry Question

Question

Which of the following standardly established experimental laboratory techniques can strictly and accurately be utilized to definitively distinguish structurally between an Oil-in-Water (O/W) emulsion and a Water-in-Oil (W/O) emulsion?

Answer: A,B,C

💡 Solution & Explanation

Statements A, B, and C describe the three completely standard accepted analytical physical tests for definitive emulsion phase identification. Pure water easily and smoothly dilutes the continuous water phase in O/W. Water-soluble specific dyes exclusively color the entire continuous aqueous phase of O/W. Water definitively conducts free electricity far better than tightly insulating oil, so O/W has massively higher measurable conductivity. Statement D is unequivocally entirely false; both complex types of dense emulsions are highly colloidal and strictly strongly exhibit the characteristic Tyndall effect.

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