Basic Concepts of ChemistryPhysical and Chemical Changes836Choose the best answerWhich description best fits a reversible physical change?APermanent and reversibleBTemporary and irreversibleCTemporary and reversibleDPermanent and irreversible Like 0 Discuss 0Share
SZABMU MDCAT 2025 Chemistry#Isomerism#Optical Isomerism837Choose the best answerThe relationship of (+) tartaric acid and (-) Tartaric acid are: (SZABMU MDCAT 2025)Ageometric isomersBenantiomersCdiastereomersDplanar Like 0 Discuss 0Share
ElectrochemistryElectrolysis of Aqueous Solutions838Choose the best answerDuring electrolysis of aqueous KNO₃, H₂ is produced at the cathode instead of K because:AK⁺ has a more positive reduction potential than H⁺BPotassium is less reactive than hydrogenCReduction of water/H⁺ is easier than reduction of K⁺DPotassium is already in the elemental state Like 0 Discuss 0Share
LiquidsAnomalous Behaviour of Water839Choose the best answerWater shows anomalous expansion when cooled from:A100°C to 0°CB4°C to 0°CC10°C to 4°CD0°C to −10°C Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Chemical Equilibrium#Le Chatelier's Principle840Choose the best answerIn the production of SO₃ from SO₂ and Oxygen, the yield of SO₃ is increased by (KMU MDCAT 2024)AAdding a catalystBAdding more SO₂CIncreasing temperatureDRemoving oxygen Like 0 Discuss 0Share