Electrochemistry · Class 12 Chemistry · Chapter 2
🔋 Electrochemistry
CBSE Class 12 · Chemistry · Chapter 2
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Six free PDFs + an editable PPTX cover every angle of this chapter — read the deck, drill the MCQs, sit the full board paper, then check against the marking scheme.
📖Notes Deck
Full lecture deck with motifs, misconception red-boxes, and Hindi glossary. Read this first.
Download PDF →📝Quick Drill
15 PYQ-tagged MCQs with year + set + marks + per-Q time budget. Drill under 20-min timer.
Download PDF →📄Board Paper
Full CBSE-pattern paper with 4 sections. Sit it closed-book before checking the marking scheme.
Download PDF →✅Marking Scheme + Topper Templates
Model answers + 3 topper-template structures CBSE markers reward with full credit.
Download PDF →⚡Cheat Sheet
1-page exam-day card: formulas, top PYQ patterns, 90-minute revision flow.
Download PDF →👨👩👧For Parents
1-page plain-language parent guide: what's being learned + questions to ask your child.
Download PDF →Top PYQ patterns · CBSE 2017–2024 aggregate
| 90% | Nernst equation derivation + numerical — ΔG → −nFE → ln Q → (0.0591/n) log Q at 298K. Memorise the shortcut. | 5 MARKS |
| 90% | Galvanic cell EMF + cell notation — E°_cell = E°_cathode − E°_anode. Higher E° = cathode. | 4 MARKS |
| 80% | Faraday's laws application (mass deposited) — Q = It; moles of e⁻ = Q/F; apply half-reaction stoichiometry. | 4 MARKS |
| 70% | Kohlrausch's law application — Find Λ°_m of weak electrolyte = combination of strong-electrolyte Λ° values. | 3 MARKS |
| 60% | Corrosion mechanism + prevention — Iron = anode, O₂ at cathode. Requires O₂ + H₂O + electrolyte. Prevent via galvanisation / sacrificial Zn / paint barrier. | 3 MARKS |
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