Industrial ChemistryTemporary Hair Dyes26Choose 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
Industrial ChemistryCopolymers27Choose the best answerWhich of the following represents a copolymer?APVC formed from vinyl chlorideBA polymer formed from vinyl acetate and butyl maleateCA polymer formed from three different monomersDPolyethylene formed from ethene Like 0 Discuss 0Share
Industrial ChemistryFunctions of Proteins28Choose the best answerWhich protein-function pair is correctly matched?AHemoglobin — Hormone regulationBInsulin — Oxygen transportCAntibodies — DefenseDCasein — Muscle contraction Like 0 Discuss 0Share
Industrial ChemistryStarch Adhesives29Choose the best answerWhich adhesive is commonly associated with paper and packaging applications?AStarch glueBSuper glueCEpoxy resinDSilicone resin Like 0 Discuss 0Share
Industrial ChemistryPermanent Hair Dyes30Choose the best answerIn permanent oxidative hair dyes, the developer is usually:ASodium chlorideBHydrogen peroxideCEthylene glycolDFormaldehyde Like 0 Discuss 0Share