What are the two properties of carbon which lead to the formation of a large number of carbon compounds?

1 Name the element whose one of the allotropic forms is Buck minster fullerence. 3 State whether the following statement is true or False:

Diamond and graphite are the covalent compounds of carbon element (C).

4 Name the scientist who disproved the ‘vital force theory’ for the formation of organic compounds. 5 Name the element whose allotropic form is graphite.