A) Methyl orange
B) Methyl red
C) Phenolphthalein
D) All of these
Correct Answer: A
Solution :
Acid dyes are characterised by the presence of ?COOH, \[-S{{O}_{3}}H\] or Phenolic group. They are applied in the presence of acidic solution. They are usually applied to Wool, Silk, Nylon. They have affinity for cotton. Common examples are Orange I, Orange II, Methyl red etc.
You need to login to perform this action.
You will be redirected in
3 sec
