LiquidsHydrogen Bonding31Choose the best answerH₂O is liquid while H₂S is gaseous at room temperature mainly because:AOxygen contains lone pairsBH–O bonds are ionicCWater forms strong intermolecular hydrogen bondsDH₂S has stronger hydrogen bonding Like 0 Discuss 0Share
LiquidsMolar Enthalpy of Vaporization32Choose the best answerThe heat required to convert one mole of a liquid completely into vapour at constant temperature is called:AMolar enthalpy of vaporizationBHeat of crystallizationCHeat of fusionDHeat of sublimation Like 0 Discuss 0Share
LiquidsBoiling Point and Altitude33Choose the best answerFood generally cooks fastest at:AKarachiBQuettaCMurreeDMount Everest Like 38 Discuss 1Share1
LiquidsHydrogen Bonding in HF34Choose the best answerHF molecules associate in chains mainly because of:AHydrogen bondingBIonic bondingCMetallic bondingDCovalent bonding between separate molecules Like 0 Discuss 0Share
LiquidsDipole-Induced Dipole Forces35Choose the best answerOxygen dissolves slightly in water mainly due to:ADipole–dipole forcesBDipole-induced dipole (Debye) forcesCHydrogen bondingDIon–dipole forces Like 0 Discuss 0Share