Chemistry in Everyday Life — Chemistry STD 12 — Question
Tamilnadu BoardEnglish MediumSTD 12ChemistryChemistry in Everyday Life2 Marks
Question
Define TFM value.
✓
Answer
The quality of a soap is described in terms of total fatty matter (TFM value). It is defined as the total amount of fatty matter that can be separated from a sample after spliting with mineral acids.
Higher the TFM value in the soap, better is its quality.
As per BIS standards, Grade I soaps should have 76% minimum TFM value.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.