Question

Match the following exceptions of properties with the given metal or non metal.

• A. Low melting pt.
• B. Lustrous
• C. Hardness
• D. Good conductor

Answer 1

Metals usually have high melting points but galium has a very low meltling point.
Not only metals have metallic lustre but certain non-metals like iodine have also a metallic lustre.
Non metals like diamond and graphite which are allotropes of carbon they also have exceptional properties. Diamond is the hardest substance known and graphite is a good conductor of electricity.