Atomic StructureIsoelectronic Species176Choose the best answerWhich pair is NOT isoelectronic?AMn²⁺ and Fe³⁺BFe²⁺ and Mn²⁺CO²⁻ and F⁻DNa⁺ and Mg²⁺ Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Liquids#Vapour Pressure177Choose the best answerWhich one of the following has higher vapour pressure?AacetoneBacetaldehydeCIsopentaneDBenzene Like 3 Discuss 0Share
Atomic StructureIsotones178Choose the best answerThe atoms ³¹₁₅P and ³²₁₆S have the same:AMass numberBNumber of electronsCNumber of neutronsDNumber of protons Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro's Number179Choose the best answerHow many electrons are present in one mole of electrons?A1 electronB6.02 × 10²³ coulombsC6.02 × 10²³ electronsD1 gram of electrons Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Atomic Structure#Quantum Numbers180Choose the best answern + l value for 4d orbital is: (BUMHS MDCAT 2025)A4B5C6D7 Like 0 Discuss 0Share