Step 1: Concept
Emulsifying agents are classified based on their chemical structure and charge.
Step 2: Meaning
A. Triethanolamine oleate is an anionic soap (III). B. N-cetyl N-ethyl morpholinium ethosulfate is a cationic agent (II). C. Sorbitan mono oleate (Span) is a non-ionic surfactant (IV). D. Veegum is a solid particle (clay) used for stabilization (I).
Step 3: Analysis
Matching: A-III, B-II, C-IV, D-I.
Step 4: Conclusion
The correct match is A-III, B-II, C-IV, D-I.
Final Answer: (A)