Chemistry of HydrocarbonsPreparation of Alkenes by Dehydration of Alcohols2121Choose the best answerWhich compound is suitable for preparing propene by dehydration?APropan-2-olBPropanoic acidCPropanalDPropane Like 1 Discuss 0Share
GasesPressure–Temperature Relationship2122Choose the best answerAt constant volume, gas pressure increases with temperature mainly because:AAverage molecular speed increasesBIntermolecular attraction increasesCMolecular mass increasesDContainer volume decreases Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Chain Isomerism#Isomerism2123Choose the best answerHow many chain isomers are shown by C₅H₁₂? (Sindh MDCAT 2018)A5B4C3D2 Like 0 Discuss 0Share
StoichiometryGas Volume and Mole Concept2124Choose the best answerAir contains approximately 21% O₂ by volume. How many moles of O₂ are present in 10 L air at STP (273 K and 1 atm)?A2.1 molB0.21 molC0.016 molD0.094 mol Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Significant Figures#Stoichiometry2125Choose the best answerHow many significant figures are there in 00.4793? (Sindh MDCAT 2018)A3B4C5D6 Like 0 Discuss 0Share