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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.
Raj has wool fibers and needs to know what type of dye he should use to colour it.
Acid dye
Citric acid
Naphthol blue
Basic dye
Methyl blue
2.
Aditi has pure cotton fabrics and needs to know what type of dye she should use to colour them.
Picric acid
Vat dyes
Naphthol blue
Methyl blue
Citric acid
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