You can download the text books for any class by using the following link.. http://tnschools.gov.in/textbooks CHEMISTRY Volume 1 notesDownload Surface Chemistry (Prepared by Mageswari mam) Part- 1 Part- 2 Part- 3 Hydroxy Compounds & Ethers (Prepared by Antony sir) Part- 1 Part- 2 Part- 3 Part- 4 Unit-6 Solid State (Prepared by Antony sir) Part- 1 Part- 2 Part- 3 Part- 4 Unit-7 Chemical Kinetics (Prepared by Mageswari mam) Part- 1 Part- 2 Part- 3 Part- 4 Unit -1 Metallurgy (Prepared by Mageswari mam) XII- Chemistry Unit-1 notesDownload Metallurgy Notes (Mageswari mam)Download Part- 1 Part- 2 Part- 3 Part- 4 Part- 5 Part- 6 Part- 7 Unit -1 Metallurgy (Other videos) Tutorial video 1- Introduction Tutorial video 2- Mineral and Ore Tutorial video 3- Extraction of a Metal Tutorial video 4- Froth flotation Tutorial video 5- Leaching Tutorial video 6- Ammonia, Alkali and Acid Leaching Tutorial video 7- Magnetic Seperation Tutorial video 8- Extraction of Crude Metal Tutorial video 9- Calcination Tutorial video 10- Reduction of Metal Oxide - Smelting Tutorial video 11- Smelting Copper pyrites Tutorial video 12- Reduction by Carbon and Hydrogen Tutorial video 13- Reduction by Metal and Auto reduction Tutorial video 14- Understanding Gibbs Free Energy Tutorial video 15- Ellingham Diagram Tutorial video 16- Observations from Ellingham Diagram Tutorial video 17- Applications from Ellingham Diagram Tutorial video 18- Limitations of Ellingham Diagram Tutorial video 19- Electrochemical Principle of Metallurgy Tutorial video 20- Hall Heroult’s process Tutorial video 21- Refining Tutorial video 22- Electrolytic Refining Tutorial video 23- Zone refining Tutorial video 24- Vapour phase Method Tutorial video 25- Van Arkel Method Tutorial video 26- MCQ 1,2 Tutorial video 27- MCQ 3,4,5 Tutorial video 28- MCQ 6 Tutorial video 29- MCQ 7,8 Tutorial video 30- MCQ 9 Tutorial video 31- MCQ 10 Tutorial video 32- MCQ 11,12 Tutorial video 33- MCQ 13,14 Tutorial video 34- MCQ 15 Tutorial video 35- MCQ 16 Tutorial video 36- MCQ 17 Tutorial video 37- MCQ 18 Tutorial video 38- MCQ 19,20 Tutorial video 39- MCQ 21,22 Tutorial video 40- MCQ 23 Tutorial video 41- MCQ 24 Tutorial video 42- MCQ 25