Give two allotropic forms of carbon

Diamond and Graphite are two allotropic forms of carbon. Both are covalent solids. These two froms have different structures and hence differ in physical properties. Both have their own importance in being used in everyday life. Diamond is popularly used in jewellery and graphite is extensively used as electrodes in many industrial processes. Answer the following questions Which of the allotropes is a good conductor of electricity.

What are allotropic forms of sulphur ?

What is allotropy? Name the allotropes of carbon. are they chemically same? compare their physical properties

Give two ores of Zinc.