Industrial chemistry Industrial chemistry MCQS#Hair Dyes56Choose the best answerIn a permanent hair-dye formulation, resorcinol mainly acts as a:AColorantBDeveloperCModifierDChromophore Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Industrial Chemistry#Synthetic Adhesives57Choose the best answerWhich of the following adhesive is used to bond broken pieces of jewelry? (IBA MDCAT 2025)ASuper glueBEpoxy resinCSilicon resinDStarch Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Auxochromes58Choose the best answerWhat is the main role of an auxochrome in a dye molecule?AIt destroys the color of the dyeBIt enhances color and helps bind the dye to fabricCIt acts as a polymerization catalystDIt removes the dye from fabric Like 0 Discuss 0Share
Industrial ChemistryCondensation Polymerization59Choose the best answerA polymerization reaction in which monomers join with elimination of molecules such as H₂O, HCl, or methanol is called:AAddition polymerizationBCondensation polymerizationCChain terminationDFree-radical substitution Like 0 Discuss 0Share
Industrial ChemistryTemporary Hair Dyes60Choose the best answerTemporary hair dyes differ from permanent hair dyes mainly because temporary dyes:ARemain until the hair grows out.BWash out after a few washes.CAlways require hydrogen peroxide.DPermanently alter the natural hair pigment. Like 0 Discuss 0Share