StoichiometryPercentage Composition by Mass811Choose 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 Principle812Choose 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 Particles813Choose 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
Fundamental Principles of Organic ChemistryStability of Carbanions814Choose the best answerThe correct order of stability of simple alkyl carbanions is:A3° > 2° > 1° > CH₃⁻BCH₃⁻ > 1° > 2° > 3°C2° > 1° > CH₃⁻ > 3°D1° > 3° > 2° > CH₃⁻ Like 0 Discuss 0Share
LiquidsStrength of Hydrogen Bonding815Choose the best answerWhich hydrogen bond is expected to be strongest?AF–H···FBN–H···NCO–H···ODN–H···O Like 0 Discuss 0Share