Carbon And Its Allotropes Test - 1

Destructive distillation is the process in which a solid material (usually coal or wood) is heated at a high temperature out of contact with air to make coke, coal tar, or charcoal. It is called `destructive` because the chemical composition of the end product is distinctly different from that of the input material.

The C-C bond length in graphite is 142 pm or 1.42A^o.

In graphite, each carbon atom is covalently bonded to three other carbon atoms to make layers of hexagonal rings that can slip past one another. Therefore, in graphite each carbon atom has a free electron in its outermost energy shell. This free electron is responsible for conductivity of electricity through graphite.

Diamond is a good conductor of heat because of the strong covalent bonding and low phonon scattering. This is the reason why diamond has high conductivity.

Carbon-14, ¹⁴C, or radiocarbon, is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

Graphite is a naturally-occurring form of crystalline carbon. It is a native element mineral found in metamorphic and igneous rocks. Graphite is a mineral of extremes.