StoichiometryMole–Mole Stoichiometry176Choose the best answerHow many moles of O₂ are formed by complete decomposition of 1 mol KClO₃? 2KClO₃ → 2KCl + 3O₂A3 molB2/3 molC3/2 molD2 mol Like 0 Discuss 0Share
SolidsIonic Solids177Choose the best answerWhich type of crystalline solid conducts electricity when molten or dissolved in water but not in the solid state?ACovalent crystalBMetallic crystalCMolecular crystalDIonic crystal Like 0 Discuss 0Share
Chemical BondingBond Length, Bond Order and Hybridization178Choose the best answerThe C–C bond lengths in ethane, ethene and ethyne are approximately 154 pm, 133 pm and 120 pm, respectively. This decrease in bond length is mainly due to:AIncreasing s-character from sp³ to sp hybridizationBIncreasing bond order from single to triple bondCBoth A and BDIncreasing atomic size of carbon Like 0 Discuss 0Share
Alkyl HalidesSolvent Effect on SN1 Reaction179Choose the best answerWhich solvent favors an SN₁ reaction?ADMSOBDMFCEthanolDAcetone Like 0 Discuss 0Share
Alcohols and PhenolsReaction of Alcohols with Hydrogen Halides180Choose the best answerWhich alcohol reacts most rapidly with concentrated HCl at room temperature?AMethanolBEthanolCPropan-2-olDtert-Butanol Like 0 Discuss 0Share