Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Discovery of Proton1216Choose the best answerWho introduced the term “proton” for the positively charged nuclear particle?AEugen GoldsteinBJ.J. ThomsonCErnest RutherfordDRobert Millikan Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Benzene & Aromatic Compounds#Benzene Reactions1217Choose the best answerFuming sulfuric acid at room temperature reacts with benzene to produce: (MDCAT Reconduct 2023)ABenzene oxideBBenzene sulfiteCBenzene sulfideDBenzene sulfonic acid Like 0 Discuss 0Share
Sindh MDCAT 2021 Chemistry#Macromolecules#Polymers1218Choose the best answerBakelite is a polymer of phenol and:AFormaldehydeBEthanolCEtheneDBenzene Like 0 Discuss 0Share
StoichiometryMolar Mass from Gas Volume1219Choose the best answerA 4.4 g sample of a gas occupies 2.24 L at STP (273 K and 1 atm). Which gas may it be?ACO₂BCOCO₂DSO₂ Like 0 Discuss 0Share
Chemistry of HydrocarbonsGeneral Properties of Alkanes1220Choose the best answerWhich statement about alkanes is false?ATheir carbon atoms are sp³ hybridized.BThey contain only σ bonds.CThey readily undergo electrophilic addition reactions.DThey are saturated hydrocarbons. Like 1 Discuss 0Share