ElectrochemistryStandard Hydrogen Electrode711Choose the best answerWhich statement is NOT correct for the standard hydrogen electrode?APlatinum black is used on the Pt electrodeBThe standard temperature is commonly taken as 298 KCA 1 M H₂SO₄ solution is specifically requiredDIt is used as a reference for measuring electrode potentials Like 0 Discuss 0Share
Aldehydes and KetonesDehydrogenation of Alcohols712Choose the best answerTertiary alcohols do not undergo normal dehydrogenation to carbonyl compounds over heated copper because:AThey are readily oxidized.BThey lack an α-hydrogen on the carbon bearing –OH.CThey lack every β-hydrogen.DThey do not contain an –OH group. Like 0 Discuss 0Share
Chemistry of HydrocarbonsStructure and Bonding in Benzene713Choose the best answerThe ratio of the number of σ bonds to π bonds in benzene is:A2B4C6D8 Like 3 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc714Choose the best answerFor Fe³⁺(aq) + 4Cl⁻(aq) ⇌ FeCl₄⁻(aq), which expression represents Kc?A[Fe³⁺][Cl⁻]⁴ / [FeCl₄⁻]B[FeCl₄⁻] / [Fe³⁺][Cl⁻]⁴C[FeCl₄⁻] / [Fe³⁺][Cl⁻]D[FeCl₄⁻]⁴ / [Fe³⁺][Cl⁻] Like 0 Discuss 0Share
Chemical BondingLewis Acids and Bases715Choose the best answerWhich species has no tendency to donate a lone pair to H⁺?ANH₃BH₂OCBF₃DCH₃OH Like 0 Discuss 0Share