Graphite is a good conductor of electricity due to the free electrons in its structure, and it is not a semiconductor.
A cubic solid is made up of two elements $X$ and $Y$ Atoms of $X$ are present on every alternate corner and one at the enter of cube $Y$ is at $\frac{1}{3} td$ of the total faces The empirical formula of the compound is
List-I | List-II | ||
(A) | Hexagonal | (I) | ∝ ≠ β ≠ γ ≠ 90° |
(B) | Orthorhombic | (II) | ∝ = γ = 90°, β ≠ 90° |
(C) | Triclinic | (III) | ∝ = β = 90°, γ = 120° |
(D) | Monoclinic | (IV) | ∝ = β = γ = 90° |