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Subjects
Science Test Space
Class 8
Applied chemistry
Radio to Forensic chemistry
13.
Choose the right option: 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.
Basic dye
Salicylic acid
Methyl black
Naphthol pink
Acid dye
2.
Joshi has plant fibers and needs to know what type of dye she should use to colour it.
Methyl black
Picric acid
Salicylic acid
Naphthol pink
Basic dye
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