Class 12 / Haloalkanes / Lecture 2- Method of Preparation / board2027💥&NEET🧬💥+PYQ👍

Haloalkanes and Haloarenes L-2 | Class 12 Chemistry Chapter 6 | CBSE 2027 Board me har saal "How will you prepare?" 3 ya 5 Marks ka pakka aata hai 📝 Is Lecture ke baad 1 mark bhi nahi katega. 📌 Full Reaction List with Condition + Equation: 1. *From Alcohol:* $R-OH \xrightarrow{PCl_5} R-Cl + POCl_3 + HCl$ $R-OH \xrightarrow{SOCl_2} R-Cl + SO_2 \uparrow + HCl \uparrow$ → Best kyu? $R-OH \xrightarrow{HCl, ZnCl_2}$ Lucas Test 2. *From Alkane:* $CH_4 \xrightarrow{Cl_2, hv} CH_3Cl$ Free Radical 3. *From Alkene:* Peroxide Effect = Anti-Markovnikov $CH_3CH=CH_2 \xrightarrow{HBr/Peroxide} CH_3CH_2CH_2Br$ 4. *From Benzene:* $C_6H_6 \xrightarrow{Cl_2/FeCl_3} C_6H_5Cl$ 5. *Sandmeyer Reaction - 4 in 1 ⭐* $C_6H_5N_2^+Cl^- \xrightarrow{CuCl/HCl} C_6H_5Cl + N_2$ $C_6H_5N_2^+Cl^- \xrightarrow{KI} C_6H_5I + N_2$ 6. *Finkelstein:* $R-Cl \xrightarrow{NaI/Acetone} R-I$ 7. *Swarts:* $R-Cl \xrightarrow{AgF} R-F$ ✅ Board Tip: Reagent + Condition + Byproduct = Full Marks 📚 NCERT Unit #class12chemistry #cbse2027 #ncertchemistry #students #pyqsolutions #introductionvideo #neet2027