Atomic StructureAtomic Number and Mass Number2016Choose the best answerIn the standard notation of a nuclide, the mass number and atomic number are written:AMass number at the upper left and atomic number at the lower left of the element symbolBAtomic number at the upper left and mass number at the lower leftCBoth numbers on the right side of the element symbolDBoth numbers as superscripts Like 0 Discuss 0Share
SZABMU MDCAT 2025 Chemistry#Chemical Equilibrium#Le Chatelier's Principle2017Choose the best answerAccording to Le Chatelier's principle, in Haber's process yield of ammonia can be increased by: (SZABMU MDCAT 2025)Adecreasing pressure and increasing temperatureBincreasing pressure and decreasing temperatureCincreasing volume and decreasing temperatureDdecreasing concentration of H₂ Like 0 Discuss 0Share
XIIMDCAT Chemistry Test#Alkynes#Chemistry of Hydrocarbons2018Choose the best answerWhat is the main product when an internal alkyne is hydrogenated with Lindlar’s catalyst?AAlkaneBTrans-alkeneCAlcoholDCis-alkene Like 0 Discuss 0Share
Atomic StructurePositive Rays2019Choose the best answerThe nature of positive rays produced in a discharge tube mainly depends on the:AMaterial of the cathodeBNature of the residual gasCShape of the discharge tubeDApplied magnetic field only Like 0 Discuss 0Share
Industrial ChemistryEffect of Substrate Concentration on Enzyme Activity2020Choose the best answerIncreasing substrate concentration generally increases enzyme reaction rate until:AThe substrate becomes an enzyme.BAll enzyme active sites become saturated.CThe pH automatically becomes neutral.DThe enzyme is permanently destroyed. Like 0 Discuss 0Share