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Famed and most IMPORTENT reaction class 12

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IMPORTENT NAMED REACTION OF THE CHEMISTRY IN CBSE:- INDEX 1. Sandmeyer Reaction 2. Gattermann Reaction 3. Balz-Schiemann Reaction 4. Finkelstein Reaction 5. Swartz Reaction 6. Wurtz Reaction 7. Fitting Reaction 8. Wurtz - Fittig Reaction 9. Kolbe's Reaction 10. Reimer- Tiemann Reaction 11. Rosenmund Reduction 12. Gattermann - Koch Reaction 13. Stephen Reaction or Stephen Reduction 14. Clemmensen Reduction 15. Wolff - Kishner Reduction 16. Haloform Reaction (Iodoform Reaction) 17. Aldol Condensation 18. Cannizzaro Reaction 19. Friedel - Crafts Reaction 20. Grignard Synthesis 21. Esterification Reaction or Fischer Esterification 22. Williamson Synthesis 23. Diazotisation Reaction 24. Etard Reaction 25. Hell - Volhard Zelinsky Reaction 26. Decarboxylation Reaction 27. Hofmann Bromide Reaction 28. Gabriel Phthalimide Synthesis 29. Coupling Reaction 30. Carbylamine Reaction 1)SANDMAYER REACTION:- The DIAZONIUM (C6H5N2Cl) is prepared by treating ice co...

PHYSICES MOST IMPORTENT CLASS12

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PHYSICES KA GYAN PHYSICES THEORITICAL MOST IMPORTENT QUESTION CLASS12:- Electrostatics:- 1. Derive an expression for the electric field at a point on the axial position of an electric dipole. 2. Derive an expression for the electric field at a point on the equatorial position of an electric dipole. 3. Describe the Principle, construction and working of Van de Graff generator. 4. Derive an expression for the energy stored in a capacitor. Show that whenever two conductors share charges by bringing them into electrical contact, there is a loss of energy. 5. Derive an expression for the effective capacitance when capacitors are connected in (a) series and (b) parallel 6. Explain the principle of a capacitor and derive an expression for the capacitance of a parallel plate capacitor. 7. State Gauss theorem and apply it to find the electric field at a point due to (a) a line of charge (b) A plane sheet of charge (c) A Charged spherical conducting shell 8. State Coulomb's law and...