KMU MDCAT 2024 Chemistry#Chemical Bonding#Molecular Geometry1411Choose the best answerWhich one of the following molecules has a pyramidal structure? (KMU MDCAT 2024)AC₂H₄BCH₄CH₂ODNH₃ Like 0 Discuss 0Share
Atomic StructureSubatomic Particles1412Choose the best answerIn electron-impact mass spectrometry, a molecular ion is commonly formed by bombardment with:AHigh-energy electronsBα-particlesCVisible lightDNeutrons Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Chemical Bonding#Molecular Geometry1413Choose the best answerA triatomic molecule must be either linear with bond angle of 180° or else? (BUMHS MDCAT 2025)At-shapeBbentCpyramidalDtetrahedral Like 1 Discuss 0Share
Fundamental Principles of Organic ChemistryStructural and Stereoisomerism1414Choose the best answerWhich pair does NOT represent structural isomers?ABut-1-ene and But-2-eneBPentane and NeopentaneCEthanol and Dimethyl etherDMaleic acid and Fumaric acid Like 0 Discuss 0Share
Chemical KineticsEffect of Temperature on Reaction Rate1415Choose the best answerThe large increase in reaction rate with increasing temperature is mainly because:ACollision frequency decreases.BThe fraction of molecules with energy equal to or greater than Ea increases.CMean free path decreases only.DActivation energy decreases. Like 0 Discuss 0Share