Question
Chemistry Question on Chemistry in Everyday Life
Which of the following, is a mordant dye?
A
Aniline black
B
Congo-red
C
Alizarin
D
Indigo
Answer
Alizarin
Explanation
Solution
Mordant dyes are those dyes, which cannot be fixed directly on fabric but require some fixating agents (like Cr salts) e.g., Alizarin.