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(Molar mass of Fe= 56 g mol–1), 0.02×vol×61000=3×0.288144×100\frac{0.02\times vol\times 6}{1000}=3 \times \frac{0.288}{144}\times 10010000.02×vol×6=3×1440.288×100. JEE Main Previous Year Papers: If you are looking for JEE Main previous year question papers, then you have come to the right place.As the JEE Main 2021 official notification has been announced, candidates must start their exam preparation right away. **This app is completely free!!! By solving JEE Main January 2020 chapterwise questions with solutions will help you to score more in your IIT JEE examination. 22. Newer Post Older Post Home. The solutions provided here have been extensively prepared by our subject-matter experts keeping in mind all the latest developments in the entrance exam. The PDF provided below contains JEE Main Chemistry Important Questions. 16. JEE Main 2020 Exam Analysis. This PDF below consists of the chemistry important questions for Jee Mains. JEE Main 2021 Syllabus with Weightage - Preparation becomes better with the knowledge of detailed JEE Main syllabus with weightage. The one that is NOT suitable for the removal of permanent hardness of water is: Clark’s method is used for Removal of Temporary hardness. While preparing for the JEE Main examination, in which the level of competition is sky-high, candidates would certainly want to know the JEE Main chapter wise weightage for each subject. Boron and silicon of very high purity can be obtained through: 5. Join Our Telegram Channel for Exclusive IIT JEE Study Materials. By solving JEE Main January 2019 chapterwise questions with solutions will help you to score more in your IIT JEE examination. JEE Main 2020 official answer key and question paper for September session will be published by NTA at nta.jeemain.nic.in. JEE Main 2020 Chapter Wise Questions (September) Physics Chemistry Mathematics. 25. 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