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Subjects
Science State Board
Class 9
Applied chemistry
Radio to Forensic chemistry
13.
Choose the right option: Dyes
Exercise condition:
4
m.
Choose the right option given below:
1.
Ria has silk fibers and needs to know what type of dye she should use to colour it.
Methyl orange
Acid dye
Basic dye
Boric acid
Naphthol blue
2.
Naina has rayon, cellulose fibers and needs to know what type of dye she should use to colour it.
Methyl orange
Naphthol blue
Congo red
Picric acid
Boric acid
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