Crystal violet
Aniline blue
Alizarin
Phenolphthalein
Answer is Right!
Answer is Wrong!
The correct answer is C. Alizarin.
Alizarin is a natural dye that is extracted from the roots of the madder plant. It is a red dye that has been used for centuries to color textiles, cosmetics, and other products. Alizarin is also used in the manufacture of
some pharmaceuticals.Crystal violet is a synthetic dye that is used as a stain in microscopy and as a disinfectant. Aniline blue is a synthetic dye that is used to color textiles and paper. Phenolphthalein is a synthetic dye that is used as an indicator in chemistry.
All of these dyes are used for different purposes, but only alizarin is a natural dye.