Sindh MDCAT 2020 Chemistry#Acid Strength#Carboxylic Acids876Choose the best answerWhich of the following is the strongest acid? (Sindh MDCAT 2020)APropionic acid (CH₃CH₂COOH)BFluoroethanoic acid (FCH₂COOH)CTrichloroethanoic acid (CCl₃COOH)DNitroethanoic acid (NO₂CH₂COOH) Like 0 Discuss 0Share
Chemical EquilibriumEquilibrium Constant Kc877Choose the best answerFor A + B ⇌ C + D, initially [A] = [B] = 1.0 mol dm⁻³ and [C] = [D] = 0. At equilibrium, [C] = [D] = 0.8 mol dm⁻³. The value of Kc is:A6.4B0.64C1.6D16 Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryChain Isomerism878Choose the best answerWhich compound can exhibit chain isomerism?AMethaneBEthaneCPropaneDButane Like 0 Discuss 0Share
Atomic StructurePlanck's Quantum Theory879Choose the best answerWhich one of the following is NOT a characteristic of Planck's quantum theory?AEnergy is emitted or absorbed continuouslyBRadiation is associated with energyCEnergy is exchanged in discrete packets called quantaDEnergy of a quantum is proportional to frequency Like 0 Discuss 0Share
StoichiometryMole#Mole Concept880Choose the best answerOne mole of carbon has a mass of 12 g, while one mole of magnesium has a mass of 24 g. One Mg atom is:AHalf as heavy as one C atomBEqual in mass to one C atomCTwice as heavy as one C atomDFour times as heavy as one C atom Like 0 Discuss 0Share