XiMDCAT XI Complete Chemistry Grand Test#Percentage Yield#Stoichiometry916Choose the best answerA reaction has 80% yield and a theoretical yield of 50 g. What is the actual yield?A30 gB35 gC40 gD45 g Like 0 Discuss 0Share
GasesIdeal Behaviour of Helium917Choose the best answerHelium behaves very nearly as an ideal gas because:AIt has strong intermolecular attractionsBIts atoms have very large volumeCIt has a high boiling pointDIntermolecular attractions between He atoms are very weak Like 0 Discuss 0Share
GasesAverage Kinetic Energy of Gases918Choose the best answerAt 298 K, the average kinetic energy of a He atom compared with that of an H₂ molecule is:ATwice as largeBThe sameCHalf as largeDFour times as large Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Hydrogen Isotopes#Isotopes919Choose the best answerTritium, an isotope of hydrogen contains: (Sindh MDCAT 2019)AEqual number of electrons and neutronsBEqual number of electrons, protons and neutronsCNumber of neutrons are double than the number of protonsDNumber of neutrons are half than the number of protons Like 0 Discuss 0Share
Atomic StructureAzimuthal Quantum Number and Angular Momentum920Choose the best answerThe azimuthal quantum number, ℓ, is directly related to the electron's:AElectric chargeBSpin onlyCOrbital angular momentumDNuclear mass Like 0 Discuss 0Share