6.
根据下表给出的几种物质的熔点、沸点数据,判断下列有关说法中正确的是
晶体 | \(\rm{NaCl}\) | \(\rm{KCl}\) | \(\rm{AlCl_{3}}\) | \(\rm{SiCl_{4}}\) | 单质硼\(\rm{(B)}\) |
熔点\(\rm{/℃}\) | \(\rm{810}\) | \(\rm{776}\) | \(\rm{190}\) | \(\rm{-68}\) | \(\rm{2300}\) |
沸点\(\rm{/℃}\) | \(\rm{1465}\) | \(\rm{1418}\) | \(\rm{180}\) | \(\rm{57}\) | \(\rm{2500}\) |