KPK Boards Intermediate (HSSC) Chemistry (Classes XI and XII): syllabus, papers and marking

Two 85-mark papers in the 18 + 40 + 27 layout: twelve units in Class XI and twelve in Class XII.

SLO-based model papers and Tables of Specification for HSSC Annual-I 2025 and onward (KPTBB books), BISE Peshawar · Annual-I and Annual-II series · grades A++ to U (IBCC scale)

KPK Inter Chemistry: where the marks go

KPK Intermediate Chemistry is an 85-mark paper in Class XI and again in Class XII: 18 MCQs, any 10 of 13 four-mark questions and any 3 of 4 nine-mark questions. The Class XI Table of Specification covers twelve units from Stoichiometry to Electrochemistry, giving States of Matter I (gases) the highest weight at 12 percent, and the Class XII table covers units 13 to 24 from s and p block elements to analytical chemistry.

Marks go on balanced equations, accurate gas-law and equilibrium numericals and complete reaction mechanisms. Our papers copy the Table of Specification.

How we mark a real script

Paper structure and what we mark

PaperTimeMarksWeightQuestions
Class XI · Section A — Multiple Choice (Class XI)20 min1810.6%18 MCQs on a response sheet, 1 mark each
Class XI · Section B — Reasoning Questions (Class XI)2 h 40 min (B and C)4023.5%Any 10 of 13 restricted-response questions, 4 marks each
Class XI · Section C — Extended Questions (Class XI)—2715.9%Any 3 of 4 extended-response questions, 9 marks each (5 + 4)
Class XII · Section A — Multiple Choice (Class XII)20 min1810.6%18 MCQs on a response sheet, 1 mark each
Class XII · Section B — Reasoning Questions (Class XII)2 h 40 min (B and C)4023.5%Any 10 of 13 restricted-response questions, 4 marks each
Class XII · Section C — Extended Questions (Class XII)—2715.9%Any 3 of 4 extended-response questions, 9 marks each (5 + 4)

Syllabus outline

  1. Class XI, unit 1: Stoichiometry
  2. Class XI, unit 2: Atomic Structure
  3. Class XI, unit 3: Theories of Covalent Bonding and Shapes of Molecules
  4. Class XI, unit 4: States of Matter I: Gases
  5. Class XI, unit 5: States of Matter II: Liquids
  6. Class XI, unit 6: States of Matter III: Solids
  7. Class XI, unit 7: Chemical Equilibrium
  8. Class XI, unit 8: Acids, Bases and Salts
  9. Class XI, unit 9: Chemical Kinetics
  10. Class XI, unit 10: Solutions and Colloids
  11. Class XI, unit 11: Thermochemistry
  12. Class XI, unit 12: Electrochemistry
  13. Class XII, unit 13: s and p Block Elements
  14. Class XII, unit 14: d and f Block Elements
  15. Class XII, unit 15: Organic Compounds
  16. Class XII, unit 16: Hydrocarbons
  17. Class XII, unit 17: Alkyl Halides and Amines
  18. Class XII, unit 18: Alcohols, Phenols and Ethers
  19. Class XII, unit 19: Carbonyl Compounds I: Aldehydes and Ketones
  20. Class XII, unit 20: Carbonyl Compounds II: Carboxylic Acids and Functional Derivatives
  21. Class XII, unit 21: Biochemistry
  22. Class XII, unit 22: Industrial Chemistry
  23. Class XII, unit 23: Environmental Chemistry
  24. Class XII, unit 24: Analytical Chemistry

How each paper is marked here

Where KPK Inter Chemistry candidates lose marks

  1. Equation not balanced, or state symbols missing — A correct reaction with the wrong coefficients loses the mark; balance first, then add (s), (l), (g) or (aq) where the question asks for them.
  2. Mole calculation with the wrong molar mass — Stoichiometry answers fail at the first step when the molar mass is added up wrongly; the rest of the working then cannot earn its marks.
  3. Definition that names the example, not the idea — Terms such as electronegativity, ionisation energy, equilibrium constant or isotope need the property itself; an example alone is not enough.
  4. Organic reactions with the wrong conditions — Naming the product but leaving out the reagent, catalyst or temperature (for example for dehydration or hydrogenation) is a standard half-mark loss.
  5. Trends stated without the reason — Periodic-table questions ask for the trend and the reason (shielding, nuclear charge, size); the trend alone earns half.

Sample papers, mark schemes and marked reports for KPK Inter Chemistry

See a real handwritten script marked by eight examiners at admitportfolio.com/examiners.

Questions teachers ask

Is the practical included?
The practical is assessed separately and not covered here.
Why does the unit numbering start at 13 in Class XII?
The Class XII Table of Specification continues the unit numbering from Class XI.
Is this official KPK Boards marking?
No. Boards of Intermediate and Secondary Education, Khyber Pakhtunkhwa marks the real exam. This is examiner-style marking of mocks and homework for KPK Inter Chemistry. Only you see the marking, and you decide what reaches the student.
Do you reproduce past-paper questions?
No. Every Classes XI and XII paper here is original and written to the slo-based model papers and tables of specification for hssc annual-i 2025 and onward (kptbb books), bise peshawar, in the same structure as the real papers shown above.
Which papers are marked?
None yet are marked question by question; Class XI · Section A, Class XII · Section A are scored instantly. Practical exams sat at the centre are not marked here.
How is the next paper chosen?
From the marks a student lost: the concepts behind them are ranked by marks dropped, and the new paper weights those topics. It is the same syllabus and structure, with new questions.
When are the exams?
Annual-I and Annual-II series. Grades A++ to U (IBCC scale).

Other KPK Boards Intermediate (HSSC) courses

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