Chemistry of HydrocarbonsMarkovnikov Addition2641Choose the best answerAccording to Markovnikov's rule, when HX adds to an unsymmetrical alkene, H generally attaches to the carbon that:AHas fewer hydrogen atomsBHas more hydrogen atomsCIs bonded to the halogenDHas no carbon substituent in every case Like 1 Discuss 0Share
Fundamental Concepts of ChemistryPure Substances2642Choose the best answerA pure substance is best defined as:AA substance made of two or more physically mixed componentsBA substance with fixed composition and characteristic propertiesCAny mixture of different substancesDA substance that can always be separated physically Like 0 Discuss 0Share1
Classification of Hydrocarbons and IsomerismClassification of hydrocarbons, structural & geometrical isomerism#Empirical and Molecular Formula#Stoichiometry2643Choose the best answerWhat is the general molecular formula of saturated monohydric alcohols and their ether functional isomers?ACₙH₂ₙOBCₙH₂ₙ₋₂OCCₙH₂ₙ₊₂ODCₙH₂ₙO₂ Like 0 Discuss 0Share
GasesReal Gases and van der Waals Equation2644Choose the best answerApproximate van der Waals constant a values are: O₂ = 1.36, N₂ = 1.39, NH₃ = 4.17, CH₄ = 2.25. Which gas has the strongest intermolecular attraction and can be liquefied most easily?AO₂BN₂CNH₃DCH₄ Like 0 Discuss 0Share
GasesVapour Density and Molar Volume2645Choose the best answerAt STP (273 K and 1 atm), 11.2 g of a gas has a vapour density of 11.2. What volume does it occupy?A2.0 LB4.0 LC11.2 LD22.4 L Like 0 Discuss 0Share