Crack chemistry SSC II

Section-C = 20 marks = The difference between A and A+ Let’s be honest — everyone can do Section-B. Section-C is where the board takes your marks back. I lost 8 marks here in my pre-boards. Why? Messy diagrams, missing labels, and writing “essays” for 5-mark answers. So I rebuilt every answer using the 2025 marking scheme. This is Class X Chemistry SBC-II Section-C 2026, solved the way examiners mark: Q3: Heating curve + Electrolytic cell — both redrawn with every label that gets marks Q4: Rate graphs solved step-by-step + Contact Process with catalyst, temp, pressure keywords Q5: All 5 organic structures — condensed, structural, displayed. No more confusion Q6: Fractional distillation + Alcohols in pharma — 5 points, 5 marks. No extra lines I stopped writing paragraphs. I started writing keywords: "V₂O₅ catalyst", "anode oxidation", "latent heat plateau", "fractionating column". That’s what gets you 5/5. These are MY solved notes + diagrams. I used them to jump from B to A+ in finals. If you’re doing last-night revision, this is the paper you want. For 2026 boards | Sindh + Federal | 4 questions, 20 marks, zero stress.