Industrial chemistry Industrial chemistry MCQS#Auxochromes856Choose the best answerWhich group acts as an auxochrome?A–N=N–B–NO₂C–OHD–C=O Like 0 Discuss 0Share
LiquidsVaporization857Choose the best answerVaporization is the conversion of:ASolid → gasBLiquid → gasCSolid → liquidDGas → liquid Like 0 Discuss 0Share
ElectrochemistryOxidation and Reduction858Choose the best answerWhich statement is NOT true for the reaction Fe³⁺ + e⁻ → Fe²⁺?AFe³⁺ is reducedBThe oxidation state of Fe changesCFe³⁺ acts as an oxidizing agentDBoth Fe³⁺ and Fe²⁺ are anions Like 0 Discuss 0Share
SolidsHexagonal Crystal System859Choose the best answerIn the hexagonal crystal system:Aa = b = c and all angles are 90°Ba = b ≠ c and γ = 120°Ca ≠ b ≠ c and all angles are 90°DAll axes and all angles are unequal Like 0 Discuss 0Share
Stoichiometry#Atomic Structure#Isotopes860Choose the best answerWho introduced the concept of isotopes?ABerzeliusBJ.J ThomsonCSoddyDAbraham Like 0 Discuss 0Share