StoichiometryMole Concept and Number of Atoms651Choose the best answerEqual masses of N₂, H₂ and O₂ are present in a vessel. Which sample contains the least number of atoms?AH₂BN₂CO₂DBoth H₂ and N₂ Like 0 Discuss 0Share
Atomic StructureShells, Subshells and Orbitals652Choose the best answerFor the principal quantum number n = 3, the numbers of possible subshells and orbitals are respectively:A3 and 5B3 and 7C3 and 9D2 and 5 Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Alkali Metals#S- and P-Block Elements653Choose the best answerWhich of the following alkali metal forms only normal oxide with O₂? (KMU MDCAT 2024)AKBLiCNaDRb Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryNomenclature of Alkyl Groups654Choose the best answerThe systematic name of the tert-butyl group is:A2-MethylpropylB1,1-DimethylethylC2,2-DimethylpropylDButan-2-yl Like 0 Discuss 0Share
Chemical KineticsUnits of Second-Order Rate Constant655Choose the best answerThe unit of the rate constant for a second-order reaction involves:ANeither concentration nor timeBTime onlyCBoth concentration and timeDConcentration squared but no time Like 0 Discuss 0Share