Chemical EquilibriumEquilibrium Constant Kc921Choose the best answerFor A + B ⇌ C + D, initially [A] = [B] = 1.0 mol dm⁻³ and [C] = [D] = 0. At equilibrium, [C] = [D] = 0.8 mol dm⁻³. The value of Kc is:A6.4B0.64C1.6D16 Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryChain Isomerism922Choose the best answerWhich compound can exhibit chain isomerism?AMethaneBEthaneCPropaneDButane Like 0 Discuss 0Share
Atomic StructurePlanck's Quantum Theory923Choose the best answerWhich one of the following is NOT a characteristic of Planck's quantum theory?AEnergy is emitted or absorbed continuouslyBRadiation is associated with energyCEnergy is exchanged in discrete packets called quantaDEnergy of a quantum is proportional to frequency Like 0 Discuss 0Share
StoichiometryMole#Mole Concept924Choose the best answerOne mole of carbon has a mass of 12 g, while one mole of magnesium has a mass of 24 g. One Mg atom is:AHalf as heavy as one C atomBEqual in mass to one C atomCTwice as heavy as one C atomDFour times as heavy as one C atom Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry925Choose the best answerWhat volume of CH₄ at STP (273 K and 1 atm) is required to react completely with 3.2 g O₂? CH₄ + 2O₂ → CO₂ + 2H₂OA4.48 LB2.24 LC1.12 LD0.56 L Like 0 Discuss 0Share