Industrial ChemistryEpoxy Adhesives41Choose the best answerEpoxy resin is particularly useful when an application requires:AA weak temporary bondBA strong and water-resistant bondCOnly paper bondingDHair coloring Like 0 Discuss 0Share
Industrial ChemistryNylon-6,642Choose the best answerNylon-6,6 is formed by condensation polymerization between:AEthylene glycol and terephthalic acidBAdipic acid and hexamethylenediamineCPhenol and formaldehydeDMelamine and formaldehyde Like 0 Discuss 0Share
Industrial ChemistryAuxochromes43Choose the best answerWhich group is classified as an auxochrome?A–N=N–B–NO₂C–OHD–C=O Like 0 Discuss 0Share
Industrial ChemistryCondensation Polymerization44Choose 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 Dyes45Choose 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