Osmic acid boiled with a solution of food substance gave a black precipitate. This indicates the presence of

Godbless236

3 years ago

There are three tests for fats and oil
Translucent test,sudan(iii) test and osmic acid test

KennyBrain10

1 year ago

Osmic acid... A compound of Osmium "Os" and Oxygen "O4"
Also called Osmium tetroxide... It turns a black precipitate (solid) in the presence of Fats and Oil