Among the following carbides\ 1) $\mathrm{CaC}_{2}$ 2) $\mathrm{Al}_{4} \mathrm{C}_{3}$ 3) SiC 4) W

Question

Among the following carbides\ 1) $\mathrm{CaC}_{2}$ 2) $\mathrm{Al}_{4} \mathrm{C}_{3}$ 3) SiC 4) WC 5) $\mathrm{B}_{4} \mathrm{C}$\

Professor PC Thomas Classes · Answer

$\mathrm{CaC}_{2}$ and $\mathrm{Al}_{4} \mathrm{C}_{3}$ are ionic, SiC and $\mathrm{B}_{4} \mathrm{C}$ are covalent and WC is interstitial carbide.