SolidsIsomorphism56Choose the best answerNaCl and MgO can be described as isomorphous because they:AHave identical chemical propertiesBHave a 1:1 ionic ratio and similar cubic crystal arrangementCHave exactly the same melting pointDHave a hexagonal structure Like 0 Discuss 0Share
SolidsRadius Ratio and Coordination Number57Choose the best answerA radius ratio of approximately 0.225–0.414 corresponds to:ATriangular coordinationBTetrahedral coordinationCOctahedral coordinationDCubic coordination Like 0 Discuss 0Share
SolidsGeneral Properties of States of Matter58Choose the best answerWhich statement about states of matter is correct?ALiquids and gases both possess viscosityBSolid particles move randomly throughout the entire solidCA gas cannot change directly into a solidDLiquids have no vapour pressure Like 0 Discuss 0Share
SolidsMetallic Properties59Choose the best answerThe ability of a metal to be drawn into wires is called:AMalleabilityBDuctilityCLustreDConductivity Like 0 Discuss 0Share
SolidsStructure of Graphite60Choose the best answerAdjacent layers of carbon atoms in graphite are held together mainly by:AVan der Waals forcesBFree electronsCDouble bondsDIonic bonds Like 0 Discuss 0Share