• By Justprepraj
  • August 29, 2021

INTRODUCTION Polymer word is derived from the word which means many units or parts. Polymers are chemical substances that have a high molecular mass because they are...


  • By Justprepraj
  • August 27, 2021

OVERVIEW Catalyst is a substance that speeds up the chemical reaction. With the help of a catalyst, the interaction of molecules became easy. Everyone in this world...


  • By Justprepraj
  • August 26, 2021

OVERVIEW On earth, carbon is found in various forms. It occurs in elemental form. Mian reservoirs of carbon are the ocean, rocks, atmosphere, petroleum, coal, and carbonates....