Mention the respective properties of the following allotropes of carbon that account for their uses as indicated: (a) diamond used for drilling rocks; (b) d...

 Mention the respective properties of the following allotropes of carbon that account for their uses as indicated:

(a) diamond used for drilling rocks;

(b) diamond used as jewels;

(c) graphite used as electrodes;

(d) graphite used for slowing down neutrons in nuclear reactors;

(e) wood charcoal used in gas masks.