CDP (AC) 2024
Chemistry of Dyes and Pigments exam (WPE 305), 2024 Level-3 Term-I, BUTEX affiliated colleges. Questions cover dye nomenclature like Procion Red M5B, nitro and triphenylmethane synthesis, indigo preparation, Colour Index use, and functional dyes for therapy and food.
CDP (BUTEX) 2024
Two full Chemistry of Dyes and Pigments papers (WPE 305) from BUTEX Level-3 Term-I finals, 2024. Questions span chromophores and auxochromes, azo and phthalocyanine dye synthesis, and reactive and disperse dye chemistry.
CDP (AC) 2023
Chemistry of Dyes and Pigments paper (WPE 305) from the 2023 Level-3 Term-I finals, BUTEX affiliated colleges. Questions address dye classification by structure, azo synthesis and tautomerism, dichlorotriazinyl reactive systems, disperse dyeing methods, and biomedical dyes.
CDP (AC) 2022
Chemistry of Dyes and Pigments paper (WPE 305) from BUTEX affiliated colleges' 2022 Level-3 Term-I finals. Questions address natural versus synthetic chromophores, reactive dye reactions, bromophenol blue synthesis, anthraquinone structures, and azo dye tautomerism.
CDP (AC) 2021
Chemistry of Dyes and Pigments paper (WPE 305) from the 2021 Level-3 Term-I finals, BUTEX affiliated colleges. Questions address reactive dye hydrolysis prevention, disperse dyeing of polyester, azo dye nomenclature, Colour Index generic names, metal complex dyes, and ink jet ink requirements.
CDP (AC) 2020
Chemistry of Dyes & Pigments exam (WPE 305) from BUTEX affiliated colleges' 2020 Level-3 Term-I finals. Covers Newton's colour theory, dye classifications, laking, azo tautomerism, diazotization conditions, anthraquinone applications, food colorant health views, and CAS numbers.