CORRECT ANSWERS LATEST UPDATE 2025/2026
GRADED A+.
WhichAofAtheAfollowingAmedicalAgasesAsupportAcombustion?A
I.AO2A
II.AN2OA
III.AcompressedAairA
IV.ACO2A-AcorrectAanswersC)AI,AII,AandAIII
WhatAisAtheAmostAcommonAandAleastAexpensiveAmethodAforAcommercialAproductionAofAO2?A
A)AelectrolysisAofAwaterA
B)AfractionalAdistillationAofAairA
C)AphysicalAseparationAbyAmolecularAsievesA
D)AchemicalAdecompositionAofAsodiumAchlorateAAcorrectAanswersB)AfractionalAdistillationAofAa
ir
WhatAisAtheAU.S.AFoodAandADrugAAdministrationA(FDA)ApurityAstandardAforAO2?A
A)A21%A
B)A90%A
C)A95%A
D)A99%A-AcorrectAanswersD)A99%
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WhichAofAtheAfollowingAmethodsAofAproducingAO2AisAcommonlyAusedAinAtheAhomeAcareAsettin
g
?A
A)AchemicalAdecompositionA
B)AelectrolysisA
C)AfractionalAdistillationA
D)AphysicalAseparationA-AcorrectAanswersD)AphysicalAseparation
AirAforAmedicalAuseAinAaAhospitalAshouldAbeAwhichAofAtheAfollowing?A