to find out if the substance is acid or akaline
The principle behind the Kraut's test for lipids is that lipids form a white emulsion when shaken with sulfuric acid due to the formation of glycerol and fatty acids. The appearance of a white emulsion indicates the presence of lipids in the test sample.
The bead of borax with some powdered sample is heated in a flame; the color of the bead is specific for each element and is used as a qualitative analysis.
Very simple: evaporation of water.
It has a flat surface which can stick on smooth surface.
It would be reflection, if you are doing a study island test. :)
The principle behind the Kraut's test for lipids is that lipids form a white emulsion when shaken with sulfuric acid due to the formation of glycerol and fatty acids. The appearance of a white emulsion indicates the presence of lipids in the test sample.
In the Shinoda test for flavonoids, a sample is added to pieces of magnesium and then hydrochloric acid is dripped on the sample. The color the sample turns indicates if there are flavonoids present or not.
same principle for latex methd
it works on the principle of refraction
a test for cholesterol. When concentrated sulfuric acid is added to a chloroform solution of cholesterol, the chloroform layer shows a red to blue colour and the acid layer shows a green fluorescence. [After Ernst Leopold Salkowski (1844 - 1923), German physiological chemist.]
yema
Osmosis.
The bead of borax with some powdered sample is heated in a flame; the color of the bead is specific for each element and is used as a qualitative analysis.
the principle behind working of a rocket is newtons 3rd law of motion which states that every action has equal and opposite reaction
For contro solution
Electrodynamic theory.
Diabetes