L-10: चुम्बकीय गुण (Magnetic Properties) | d एवं f-ब्लॉक के तत्व | MP PNST & Board 2026-27

🧪 Saral Academy - Zero To Hero Series (Chemistry) 🧪 Hello dear students! Welcome to this live session from Saral Academy. Today is Lecture 10 (L-10) of the most important chapter of Inorganic Chemistry, "d and f Block Elements," as part of our Class 12th Chemistry and MP Board & PNST 2026-27 special series. Our main topic today is the most scoring and interesting—"Magnetic Properties." Most d-block elements and their ions exhibit magnetic behavior. This lecture is most important from both the board exam and nursing entrance exam (PNST) perspectives because it contains direct objective questions and numerical calculations for magnetic moment. What will Sir cover in today's 'L-10' live session? Paramagnetic and Diamagnetic Behavior: Identifying magnetic behavior based on unpaired electrons. Ferromagnetism: The extremely strong paramagnetic property found in transition elements. Spin-Only Formula: The mathematical formula for finding magnetic moment ($\mu$): $$\mu = \sqrt{n(n+2)}$$ (where $n$ = the number of unpaired electrons and its unit is Bohr Magneton (BM)) Super Tricks: A magical trick to identify the correct option in just 2 seconds without lengthy calculations in the exam. Exam-Specific Question: Calculating the magnetic moment of ions such as $Sc^{3+}$, $Ti^{3+}$, $V^{2+}$, $Mn^{2+}$, $Fe^{2+}$, and $Zn^{2+}$. This entire lecture is completely based on the new NCERT syllabus and your exam pattern. In Inorganic Chemistry, understanding the formulas and tricks, rather than memorizing them, is what will get you full marks in the exam. Be sure to join the live class from start to finish and create your short notes with us! 📄 As promised in the thumbnail, join our WhatsApp and Telegram groups now (links below) to receive a free handwritten notes PDF immediately after the class (like the video), share it with all your friends, and don't forget to subscribe to the Saral Academy channel! 🚀