Stoichiometry#Atomic Structure#Isotopes771Choose the best answerWhy is the relative atomic mass of chlorine about 35.45 instead of exactly 35 or 37?AChlorine atoms lose mass during bondingBChlorine contains equal numbers of neutrons and protonsCChlorine exists naturally as isotopes with different abundancesDAtomic masses are always decimal values Like 0 Discuss 0Share
Industrial chemistry Industrial chemistry MCQS#Enzymes#Macromolecules772Choose the best answerA holoenzyme consists of:AApoenzyme + cofactorBProtein + substrateCEnzyme + productDApoenzyme + substrate Like 0 Discuss 0Share
StoichiometryPercentage Composition by Mass773Choose the best answerWhat is the percentage of carbon by mass in CaCO₃?A6%B12%C40%D48% Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Chemical Equilibrium#Le Chatelier's Principle774Choose the best answerFor the following exothermic reaction decrease in temperature will shift the equilibrium towards: 2NO(g) + O₂(g) ⇌ 2NO₂(g) (Sindh MDCAT 2018)ALeftBThe point of equilibriumCBoth directionsDRight Like 0 Discuss 0Share
Atomic StructureProperties of Beta Particles775Choose the best answerWhich of the following has an e/m ratio similar in sign and magnitude to that of electrons?Aα-raysBγ-raysCβ⁻-raysDX-rays Like 0 Discuss 0Share