Which of the following polymer substances is inert towards environmental processes?

The high temperature resistance property of $Neoprene$ is due to the presence of a large number of which atom?

Melittin present in the bite of honeybee is a polypeptide containing $......$ amino acids.

Which catalyst is used in the Fischer-Tropsch process to synthesize hydrocarbons or oxygenated compounds like propanone?

$A$ non-metal $A$ is an important constituent of our food and forms two oxides $B$ and $C$. Oxide $B$ is toxic,whereas $C$ causes global warming.
$(a)$ Identify $A$,$B$,and $C$.
$(b)$ To which Group of the Periodic Table does $A$ belong?

Which of the following is a natural polymer?