Protection of colloid & Gold number-Part 33|Cbse grade 12 chemistry|Unit 5.
Protection of colloid & Gold number PLAYLISTS SOLID STATE THEORY- http://www.youtube.com/playlist?list=PL9nSaEI0m9rcKMSbPbOC8EuCaThImu9WL NUMERICALS- SOLID STATE NUMERICALS: http://www.youtube.com/playlist?list=PL9nSaEI0m9rdPccX8B3firE96NlU2eXH8