StoichiometryMole Concept and Number of Atoms11Choose the best answerWhat mass of glucose, C₆H₁₂O₆, contains 3 mol hydrogen atoms?A180 gB90 gC45 gDNone of these Like 0 Discuss 0Share
StoichiometryMass–Volume Stoichiometry12Choose the best answerWhat volume of O₂ at STP (273 K and 1 atm) is required to burn 4 g CH₄ completely? CH₄ + 2O₂ → CO₂ + 2H₂OA22.4 LB11.2 LC5.6 LD44.8 L Like 0 Discuss 0Share
Fundamental Concepts of ChemistryMolecules and Molecular Mass13Choose the best answerWhich statement is incorrect?AH₂O is a heteroatomic moleculeBMolecular mass of H₂O₂ is 18 uCO₂ is a homodiatomic moleculeDA and C are correct Like 0 Discuss 0Share
Atomic StructureProperties of Isotopes14Choose the best answerWhich statements are NOT true for isotopes of the same element?AThey have the same number of neutronsBThey have the same mass numberCThey have identical physical propertiesDAll of these Like 0 Discuss 0Share
StoichiometryLimiting Reagent and Mole–Mole Stoichiometry15Choose the best answerFor the reaction: 2A + 3B → 4C 3 mol A and 5 mol B are mixed. How many moles of C are formed?A8 molB5 molC6 molD6.67 mol Like 0 Discuss 0Share