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| 1. |
Azo dyes are prepared from ……(a) Aniline + Phenol (b) Phenol + Phthalic anhydride (c) Phenol + Benzene diazonium chloride (d) Aniline + Phthalic anhydride |
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Answer» (c) Phenol + Benzene diazonium chloride |
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