SolidsRadius Ratio Rule66Choose the best answerRadius ratio is mainly useful for predicting the:AColour of an ionic solidBCoordination number and geometry of an ionic crystalCMelting point of every solidDSolubility of every ionic compound Like 0 Discuss 0Share
SolidsPolymorphism67Choose the best answerThe existence of the same compound in more than one crystalline form is called:AIsomorphismBAllotropyCPolymorphismDAnisotropy Like 0 Discuss 0Share
SolidsProperties of Diamond68Choose the best answerWhich statement about diamond is correct?AIt is a good electrical conductorBIt is softCIt is a poor electrical conductor but an excellent thermal conductorDIt contains carbon, hydrogen and oxygen Like 0 Discuss 0Share
SolidsStructure of Graphite69Choose the best answerAdjacent layers of graphite are held together mainly by:ACovalent bondsBIonic bondsCVan der Waals forcesDMetallic bonds Like 0 Discuss 0Share
SolidsSublimation70Choose the best answerWhich substance readily sublimes on heating?ASodium chlorideBSugarCCamphorDIron Like 0 Discuss 0Share