Fundamental Principles of Organic ChemistryCatenation2706Choose the best answerCarbon shows strong catenation mainly because:AC–C bonds are ionic.BC–C bonds are strong due to effective orbital overlap.CCarbon forms only double bonds.DC–C bonds form only inside living organisms. Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Mole Concept#Stoichiometry2707Choose the best answerHow many moles are there in 80g of sodium hydroxide (NaOH)? (KMU MDCAT 2024)A1.5B2C2.5D4 Like 0 Discuss 0Share
Atomic StructureIsotopes2708Choose the best answerThe isotope ¹⁸O contains:A18 protonsB9 protons and 9 neutronsC8 neutrons and no protonsD8 protons and 10 neutrons Like 0 Discuss 0Share
ElectrochemistryFuel Cells2709Choose the best answerIn hydrogen–oxygen fuel cells used in space applications, the useful by-product obtained is:ANiBPbCH₂ODNaOH Like 0 Discuss 0Share
Sindh MDCAT 2020 Chemistry#Acid Strength#Carboxylic Acids2710Choose 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