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Curated by: Khan Academy India - English (4 videos)
https://www.khanacademy.org/science/telangana-class-12-chemistry In this video, we look at the various forms of rubber – natural, semi-synthetic and synthetic-how they are prepared, their various pros and cons and suitability for specific applications. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! Timestamps: 0:00 : Types of rubber 0:32 : Natural rubber or polyisoprene 02:08 : cis- vs trans- polyisoprene 02:57 : Semi-synthetic vulcanized rubber 04:40 : Synthetic rubber – neoprene 07:13 : Buna-S 08:48 : Buna-N 09:52 : Summary comparison of various rubbers Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate