UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Chemical Bonding#Molecular Geometry2091Choose the best answerMolecules having one lone pair and three bond pairs have geometrical shape:ABent or angularBTrigonalCTrigonal pyramidalDTrigonal planar Like 1 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Canal Rays2092Choose the best answerWho discovered positive rays using a discharge tube with a perforated cathode?AJ.J. ThomsonBEugen GoldsteinCErnest RutherfordDJames Chadwick Like 0 Discuss 0Share
Chemical BondingOctet Rule and Exceptions2093Choose the best answerWhich molecule does NOT obey the octet rule around its central atom?ANH₃BHClCAlCl₃DCCl₄ Like 0 Discuss 0Share
GasesIdeal Gas Equation and Gas Density2094Choose the best answerThe density of an ideal gas is given by:Ad = PR/MTBd = PV/mRTCd = RT/PMDd = PM/RT Like 0 Discuss 0Share
Carboxylic AcidsFischer Esterification2095Choose the best answerIn Fischer esterification, the –OH group that leaves as part of water is derived from the:ACarboxylic acidBAlcoholCKetoneDCarbohydrate Like 0 Discuss 0Share