LiquidsImportance of Hydrogen Bonding56Choose the best answerHydrogen bonding plays an important role in:ASolubility of alcohols in waterBStabilization of biological moleculesCBoth A and BDMetallic bonding Like 0 Discuss 0Share
LiquidsAnomalous Behaviour of Water57Choose the best answerThe temperature of liquid water below the ice layer of a frozen lake is approximately:A0°CB4°CC−2°CD2°C Like 0 Discuss 0Share
LiquidsBoiling Point and External Pressure58Choose the best answerCooking takes longer under reduced pressure because:AThe boiling point of water decreasesBThe boiling point of water increasesCWater cannot evaporateDHydrogen bonding disappears Like 0 Discuss 0Share
LiquidsAnomalous Behaviour of Water59Choose the best answerIce is less dense than liquid water because:AIts hydrogen-bonded structure contains more empty spaceBIt contains ionic bondsCWater molecules lose hydrogen atomsDIce molecules become heavier Like 0 Discuss 0Share
LiquidsHydrogen Bonding and Boiling Point60Choose the best answerThe increasing order of boiling points of Group 16 hydrides is:AH₂O < H₂S < H₂Se < H₂TeBH₂Te < H₂Se < H₂S < H₂OCH₂S < H₂Se < H₂Te < H₂ODH₂Se < H₂S < H₂Te < H₂O Like 0 Discuss 0Share