SolidsCubic Crystal System46Choose the best answerA crystal system having a = b = c and α = β = γ = 90° is:ATetragonalBOrthorhombicCHexagonalDCubic Like 0 Discuss 0Share
SolidsProperties of Diamond47Choose 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
SolidsSublimation48Choose the best answerWhich substance readily sublimes on heating?ASodium chlorideBSugarCCamphorDIron Like 0 Discuss 0Share
SolidsRadius Ratio and Coordination Number49Choose the best answerThe radius-ratio range for coordination number 8 is approximately:A0.155–0.225B0.225–0.414C0.414–0.732D0.732–1.000 Like 0 Discuss 0Share
SolidsAllotropes of Sulfur50Choose the best answerThe transition temperature of sulfur between rhombic and monoclinic forms is approximately:A100°CB95.5°CC0°CD25°C Like 0 Discuss 0Share