Question
Chemistry Question on Chemistry in Everyday Life
Alizarin belongs to the class of
A
Vat dyes
B
Mordant dyes
C
Basic dyes
D
Reactive dyes
Answer
Mordant dyes
Explanation
Solution
Alizarin belongs to the mordant type of dyes. It is a red dye originally obtained from the root of the common madder plant, Rubia tinctorum, in which it occurs combined with the sugars xylose and glucose.
It is mainly used in biological research. It stains free calcium and certain calcium compounds with a red or light purple color.