StoichiometryGas Density and Molar Mass696Choose the best answerA gas has a density of 2.0 g L⁻¹ at STP (273 K and 1 atm). The gas is most likely:ACOBSO₂CCO₂DCH₄ Like 0 Discuss 0Share
Atomic StructureQuantum Numbers697Choose the best answerWhich quantum number determines the shape of an atomic orbital?AAzimuthal quantum numberBPrincipal quantum numberCMagnetic quantum numberDSpin quantum number Like 2 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept698Choose the best answerWhich sample contains the greatest number of atoms?A1 mol N₂B1 mol COC1 mol N₂OD1 mol NaCl Like 0 Discuss 0Share
StoichiometryMole Concept and Number of Particles699Choose the best answerWhich statement is correct?A1 g H₂ and 16 g CH₄ contain equal numbers of moleculesB1 g C and 2 g Mg contain approximately equal numbers of atomsC1 mol O₂ and 1 mol He contain equal numbers of atomsDAll of these Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Macromolecules#Proteins700Choose the best answerWhich protein classification is correctly matched?APhosphoprotein — protein + lipidBLipoprotein — protein + phosphoric acidCHemoglobin — protein + hemeDSimple protein — protein + prosthetic group Like 0 Discuss 0Share