Question

1. Name two physical properties of carbon in which its behaviour is not as expected from its classification as a non-metal.
2. State an important property in which these metal chloride and non-metal chloride differ.
3. Why do they differ in this property?

Answer 1

1. Sodium chloride (NaCl)
   Hydrogen chloride (HCl)
2. Metal chlorides are ionic chlorides, which are electrolytes that can conduct electricity. However, non-metal chlorides are covalent chlorides, which are non-electrolytes that do not conduct electricity.
3. They differ in this property because of the bonding in the chlorides. Metal chlorides have ionic bonds, but non-metal chlorides have covalent bonds.