UHS MDCAT 2024 Chemistry#Atomic Structure#Electronic Configuration451Choose the best answerElectronic configuration of chromium is:A[Ar] 3d⁴ 4s²B[Ar] 3d⁵ 4s²C[Ar] 3d⁵ 4s¹D[Ar] 3d⁶ 4s² Like 0 Discuss 0Share
Periodic TablePeriod 3 Trends452Choose the best answerAll the following trends are observed across Period 3 from left to right EXCEPT a gradual:AIncrease in melting pointBChange in oxides from basic toward acidicCChange in bonding character from mainly ionic toward covalentDDecrease in atomic radius with nearly constant shielding Like 0 Discuss 0Share
Alcohols and PhenolsAcidic Character of Alcohols453Choose the best answerWhich alcohol is the least acidic?ACH₃OHBC₂H₅OHC(CH₃)₂CHOHD(CH₃)₃COH Like 0 Discuss 0Share
Basic Concepts of ChemistryElements, Compounds and Mixtures454Choose the best answerAn element cannot:ABe present in a heterogeneous mixtureBBe present in a homogeneous mixtureCBe decomposed into simpler substances by ordinary chemical meansDCombine with another element to form a compound Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Stoichiometric Calculations#Stoichiometry455Choose the best answerThe mass of hydrogen gas needed to produce 51g ammonia: (IBA MDCAT 2025)A6gB9gC12gD15g Like 5 Discuss 0Share