LiquidsBoiling26Choose the best answerWhen a liquid begins to boil, visible bubbles:AAppear throughout the liquid and rise to the surfaceBCannot formCContain only airDIndicate freezing Like 0 Discuss 0Share
LiquidsHydrogen Bonding27Choose 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
LiquidsVapour Pressure and Temperature28Choose the best answerWhich property of a liquid changes strongly with temperature?AVapour pressureBMolecular formulaCMolar massDNumber of atoms per molecule Like 0 Discuss 0Share
LiquidsEquilibrium Vapour Pressure29Choose the best answerThe equilibrium vapour pressure of a pure liquid is primarily controlled by:ATemperatureBSurface areaCAmount of liquid, provided some liquid remainsDShape of the container Like 0 Discuss 0Share
LiquidsSurface Tension and Capillary Action30Choose the best answerThe rise of a liquid in a narrow capillary tube is primarily associated with:ASurface tensionBIonic bondingCVapour pressureDHeat of vaporization Like 0 Discuss 0Share