Q) Recently Chinese scientists have developed Carbon Aerogel. Which
of the following is/are correct about it:
I) It is the second lightest material after Graphite aerogel.
II) It has excellent elasticity.
III) t is expected to play an important role in pollution control.
IV) t is expected to become ideal material for sound absorption.
Options:
A)II, III & IV only.
B) II, & IV only.
C) I& III only.
D) I, II, III & IV