Chemical Industries - Online Mcqs Test - Chemistry IX (Part II)

Chemistry 9th Class MCQs – Chemical Industries – IX (Part II)

Chemical Industries – Online Mcqs Test (18 Mcqs)

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jQuizMe

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Tannic acid and gallic acid are used in the preparation of:

1. Blue black ink
2. Printing ink
3. Red ink
4. Marking ink

Online MCQs Test Part I

Chemical Industries
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