MDCAT Chemistry Past Paper 2023#Covalent Solids#Solids71Choose the best answerWhich of the following is a covalent crystal? (MDCAT 2023)ANaClBKICMgBr₂DDiamond Like 0 Discuss 0Share
SolidsGeneral Properties of Solids72Choose the best answerSolids are nearly incompressible because:ATheir particles have very high kinetic energyBTheir particles are closely packed with very little empty spaceCTheir particles are far apartDThey have very low density Like 0 Discuss 0Share
SolidsIsotropy of Amorphous Solids73Choose the best answerAmorphous solids are isotropic, which means they:AShow the same physical properties in all directionsBShow different properties in different directionsCAlways have cleavage planesDHave perfect long-range order Like 0 Discuss 0Share
SolidsElectrical Conductivity of Ionic Solids74Choose the best answerSolid NaCl is a poor electrical conductor because:AIt contains no ionsBIt is covalentCIts ions are fixed in the latticeDIt contains no electrons at all Like 0 Discuss 0Share