Download the latest CBSE Class 12 Chemistry Important Formulae in PDF format. These Class 12 Chemistry revision notes are carefully designed by expert teachers to align with the 2025-26 syllabus. These notes are great daily learning and last minute exam preparation and they simplify complex topics and highlight important definitions for Class 12 students.
Chapter-wise Revision Notes for Class 12 Chemistry All topics
To secure a higher rank, students should use these Class 12 Chemistry All topics notes for quick learning of important concepts. These exam-oriented summaries focus on difficult topics and high-weightage sections helpful in school tests and final examinations.
All topics Revision Notes for Class 12 Chemistry
Concepts for anomalous properties / exceptions in chemistry
1) Ionisation Energy
2. Electronegativity
3. Electron gain enthalpy
4. Atomic / ionic radii
5. Oxidation Number
6. Bond dissociation enthalpy
7. Charge by Radius ratio
8. Lattice enthalpy
9. Hydration Enythalpy
10. Presence and absence of vacant d-orbital
11. Size – p-ᴨ - p-ᴨ and p-ᴨ - d-ᴨ overlapping
12. Fajan’s Rule (Covalent character)
13. Presence and absence Odd Electron
14. H-bond formation ability
15. Lewis – Base Character
16. Dipole moment / Polarity
17. Reducing and oxidizing ability - Electrode potential
18. Intermolecular force of attraction
19. Catenation property / ability to form allotrope
20. State of substance – solid / liquid / gas
21. Inert pair effect
22. Repulsive interaction
23. Exothermic and endothermic compound
24. 600 angular strain
26. Types of oxides – acidic, basic, amphoteric
27. Isostructural compounds
28. Monomeric / polymeric
29. State of hybridization.
30. Imperfect screening
31. Paramagnetic / diamagnetic
32. Multiple bond formation ability
33. Effective nuclear charge
15) Ca(OH)2 +Cl2 →
16) NaCl + MnO2 + H2SO4 →
17) HgCl2 + PH3→
18) U + ClF3 →
19) XeF4 + H2O →
20) XeF6 + H2O →
21) KMnO4 + HCl →
22) KI (aq) + H2O(l) + O3 (g) →
23) CuSO4 + NH3 →
24) PCl5 + H2O(excess) →
25) (NH4)2Cr2O7 --(heat)→
26) P4 + NaOH +H2O →
27) Al2O3 + NaOH + H2O →
28) HCl + O2 + CuCl2(Catalyst)→
29) XeF2 (s) + H2O (l) →
30) NH3 + Cl2 (excess) →
31) Fe3+ + SO2+ 2H2O →
32) Br2 + KI →
33) Cl2 + H2O →
34) NaOH + SO2 →
35) SO2 + MnO4ˉ + H+ →
36) Fe + HCl →
37) Cl2(g) + NaI(aq) →
38) Na2S2O3 + I2 →
39) Na2S2O3 + Cl2 + H2O →
40) ClF + H2O →
41) XeF4 + O2F2 →
42) Cl2 + NaOH (cold and dil.) →
43) NH3 (excess) + Cl2 →
44) SO2+ V2O5 →
45) H3PO3 + Heat →
46) SF4 + H2O →
47) Al2O3 + HCl + H2O →
48) HNO3 + P4O10 →
49) NH4NO3 + Heat →
50) AgCl + NH3 →
51) NaN3 + Heat →
52) Ag + PCl5 →
53) PCl3 + H2O →
54) Zn + dil. HNO3 →
WORD ROOTS -prefix
1. Homo-- / Hetero :
2. Endo- / Exo-
3. Ultra-- / Infra –
4. Dextro- / Laevo –
5. Phobia- / Philic --- Lyophobic / lyophilic : Hydrohobic / hydrophilic
6. Pre- - Post –
7. Ante- / post : Penultimate / ante-penultimate
8. Mon- -/ bi- or di- / tri- / tetra- / penta -- Oligo - ………………… Poly- [ Monomer /polymer : monochromatic / polychromatic
9. Bis- tris- tetrakis
10.Inter- / Intra-
11.Hypo- / Hyper- : Hypotonic and hyper tonic solution
12.Primary- / secondary/ tertiary / Quaternary –
13.Super- / Sub : Supersonic , Subsonic
14.In- / Ex-
15. Singlet / duplet / triplet / quartet
16.Protic / aprotic solvent
17.Triads / Octaves
18.Entegegen - / Zusaman
19. Trans- / Cis –
20.Isomorphous / Polymorphous
21.Zeotrope / Azeotrope
22.Semi - / hemi- / demi –
23. Iso-- : Isotope / Isobar / Isoelectronic / Isotone / Isomer
24.Isotherm / Isobar / Isochore / Isotonic Solution / Isomorphous / isolobal
25.Isotropic / Anisotropic
26.Isomorphous / Polymorphous
27.Anomalous / Analogous
28.Intensive / Extensive : Intrinsic / Extrinsic
29.Dynamic / Static
30. Dehydration / Decarboxylation/Dehydrogenation
WORD ROOTS
Auto- self; tele- distance; Chroma – colour; Phone – sound; Algia = pain
Pyre- fire , heat
Photo- light Phobia – fearness, Phile – love towards, affinity towards
Metron-- measurement Stoichion - element Atomio – not divisible Oligo-fewPoly –many
Amphi , Ambi - both , on both side , around Halo- salt , Chalco-ore gene - born ,
form
1. Dent – tooth ,Chaeleo- crab Aroma - smell scribe – to write
2. Therm- Heat
3. Therapy – to cure
Antiseptic / Antibacterial / Anti allergic
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Important Practice Resources for Class 12 Chemistry
CBSE Class 12 Chemistry All topics Notes
Students can use these Revision Notes for All topics to quickly understand all the main concepts. This study material has been prepared as per the latest CBSE syllabus for Class 12. Our teachers always suggest that Class 12 students read these notes regularly as they are focused on the most important topics that usually appear in school tests and final exams.
NCERT Based All topics Summary
Our expert team has used the official NCERT book for Class 12 Chemistry to design these notes. These are the notes that definitely you for your current academic year. After reading the chapter summary, you should also refer to our NCERT solutions for Class 12. Always compare your understanding with our teacher prepared answers as they will help you build a very strong base in Chemistry.
All topics Complete Revision and Practice
To prepare very well for y our exams, students should also solve the MCQ questions and practice worksheets provided on this page. These extra solved questions will help you to check if you have understood all the concepts of All topics. All study material on studiestoday.com is free and updated according to the latest Chemistry exam patterns. Using these revision notes daily will help you feel more confident and get better marks in your exams.
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