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PDF chapter test
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Subjects
Science State Board
Class 9
Applied chemistry
Radio to Forensic chemistry
7.
Select the right answers: Dyes
Exercise condition:
4
m.
Choose the right option given below:
1.
Acetic acid
Formic acid
Picric acid
Boric acid
is an example of acid dye.
2.
Naphthol red
Boric acid
Trityl chloride
Alizarin
is an example of triphenylmethane dyes.
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