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Subjects
Science TNSB Mentoring
Class 9
Applied chemistry
Radio to forensic chemistry
6.
Types of dyes
Question:
4
m.
Choose the right option given below:
1.
Raj has wool fibers and needs to know what type of dye he should use to colour it.
Acid dye
Citric acid
Naphthol pink
Methyl black
Basic dye
2.
Maria has rayon, cellulose fibers and needs to know what type of dye she should use to colour it.
Citric acid
Direct dyes
Naphthol pink
Methyl black
Picric acid
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