A. mixing fats and acids
B. boiling fats and oils with an alkali
C. mixing soap base with chalk and fats
D. none of the above
Free MCQs for FPSC, NTS, PPSC, PMS, CSS & All Pakistan Exams 2026
A. mixing fats and acids
B. boiling fats and oils with an alkali
C. mixing soap base with chalk and fats
D. none of the above