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                  HARIHAR’S   LAB                                                     Preparation process ( science project ) Materials needed 1) Calcium carbide  (CaC 2 ) 2) Water bottle 4) Water  (H 2 O) 5) IV set 6) Candle 7) Matchbox Procedure 1) First, make a hole in a bottle cap. 2) Put the Iv Set on Bottle cap. (Look the picture given below...)  Iv set 4) Now fill the bottle with calcium carbide and water. 5) Now close the mouth of the bottle to the bottle cap.(Look the picture given below...) Iv set attach to bottle cap 6) Control the gas with the controller of the Iv Set and hold on the candle flame. Oxyacetylene flame Explanation Calcium carbide reacts with the water and formed   acetylene gas & ...

                HARIHAR’S LAB: - Practical Theory A) Study an inorganic salt: - potassium permanganate ( KMnO 4 ) Short note : -  ➪)  potassium permanganate  ( KMnO 4 )  is a strong  oxidizing agent   (an oxidizing agent transfers oxygen atoms to a substrate (organic) / oxidizing agent is called an  electron acceptor  and the reducing agent is called an electron donor). ➧ Why is KMnO4 oxidizing agent? Ans.~ Look at the structure of KMnO4, here we see that oxidation state of Mn is +7. That means it lose 7 electrons. Electronic configuration of Mn is  [Ar] 3d5 4s2. So become more stable oxidation state its accept electron and acts as a oxidizing agent in a Redox reaction . ➧ Some physical characteristic of KMnO4        Color ~ Dark purple          Odor ~ Odorless         Texture ~ Crystal...