Chemistry · Analytical Chemistry
Arrange the following steps for determining Unsaponifiable Matter in oils and fats in the correct sequence: A. Complete saponification of the sample with ethanolic KOH solution B. Extraction of the mixture with petroleum ether to isolate the unsaponified fraction C. Sequential washing of the extract with aqueous alcohol and water D. Evaporation of the solvent and weighing of the residue E. Titration of the residue with NaOH to account for free fatty acids
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1C, A, B, E, D
- 2A, C, B, D, E
- 3B, A, C, E, D
- 4A, B, C, D, E✓
Correct answer
A, B, C, D, E
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