Chemical BondingSigma Bonds736Choose the best answerThe total number of electrons present in σ bonds of ethene, C₂H₄, is:A5B10C4D8 Like 0 Discuss 0Share
Industrial ChemistryIndustrial Applications of Enzymes737Choose the best answerWhich industrial application of enzymes is correctly matched?AFood industry — Conversion of starch into sugarBDetergent industry — Production of starchCBrewing industry — Removal of paper thicknessDPaper industry — Production of antibodies Like 0 Discuss 0Share
Industrial ChemistryHoloenzyme738Choose the best answerA holoenzyme is best described as:AApoenzyme + cofactorBProtein + substrateCEnzyme + productDApoenzyme + substrate Like 0 Discuss 0Share
Atomic StructureHund's Rule and Unpaired Electrons739Choose the best answerAccording to Hund's rule, how many unpaired electrons are present in the ground-state phosphorus atom, Z = 15?A1B2C3D5 Like 0 Discuss 0Share
Alkyl HalidesSN2 Reaction740Choose the best answerWhich statements are correct for an SN₂ reaction? (1) Rate depends on nucleophile concentration. (2) The nucleophile attacks from the side opposite the leaving group. (3) Bond formation and bond cleavage occur simultaneously.A(1) and (2) onlyB(1) and (3) onlyC(1), (2) and (3)D(2) and (3) only Like 0 Discuss 0Share