Atomic StructureDegenerate Orbitals1191Choose the best answerWhich set of orbitals is degenerate in the absence of an external field?A2s, 2pₓ, 2pᵧB3s, 3pₓ, 3dxyC1s, 2s, 3sD2pₓ, 2pᵧ, 2pz Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry1192Choose the best answerWhat volume of NH₃ at STP (273 K and 1 atm) is required to react completely with 49 g H₂SO₄? 2NH₃ + H₂SO₄ → (NH₄)₂SO₄A44.8 LB22.4 LC11.2 LD5.6 L Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Hydrogen Spectrum1193Choose the best answerInto how many main spectral series is the hydrogen emission spectrum commonly classified?AThree spectral seriesBFour spectral seriesCFive spectral seriesDSeven spectral series Like 1 Discuss 0Share
GasesMolar Volume of Gases1194Choose the best answerUnder which conditions will a gas have the greatest molar volume?AHigh temperature and high pressureBHigh temperature and low pressureCLow temperature and high pressureDLow temperature and low pressure Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Polarity1195Choose the best answerThe shape and polarity of H₂S are:ABent and polarBPyramidal and polarCLinear and non-polarDBent and non-polar Like 0 Discuss 0Share