Which is used for cancer therapy?

A silvery white , liquid metal is

The recently developed materials from carbon with the help of modern technology is

The coloured organic substances which can be obtained from plants or prepared artificially is

One of the most important and widely distributed element is

A bluish white metal is

Which is available in the form of ribbons?

Chemically inert elements are,

Compounds of carbon ,hydrogen and oxygen are

Which produce natural gas and biogas?