All Practice Exams

100+ Free STPM Chemistry 962 Practice Questions

Prepare for the Sijil Tinggi Persekolahan Malaysia (STPM) — Chemistry / Kimia (962) exam with instant access — no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately
100+ Questions
100% Free

Loading practice questions...

2026 Statistics

Key Facts: STPM Chemistry 962 Exam

STPM Chemistry (962) is Form Six chemistry assessed over three semester written papers (26.67% each) plus coursework or written practical (20%), under MPM's refined syllabus from Semester 1 STPM 2026, graded A–F with C (2.00) a principal pass. Private candidates pay RM120 + RM90/subject; government-school candidates are fee-exempt.

Sample STPM Chemistry 962 Practice Questions

Try these sample questions to test your STPM Chemistry 962 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What is the relative molecular mass of calcium carbonate, CaCO3? [Ar: Ca=40, C=12, O=16]
A.68
B.100
C.112
D.140
Explanation: Mr(CaCO3) = 40 + 12 + (3 × 16) = 40 + 12 + 48 = 100.
2How many moles of molecules are present in 18.0 g of water, H2O? [Mr(H2O)=18.0]
A.0.50 mol
B.1.00 mol
C.2.00 mol
D.18.0 mol
Explanation: n = m/M = 18.0 g / 18.0 g mol^-1 = 1.00 mol of H2O molecules.
3How many atoms are present in 0.25 mol of helium gas? [L = 6.02 × 10^23 mol^-1]
A.1.505 × 10^23
B.2.408 × 10^23
C.6.02 × 10^23
D.2.408 × 10^24
Explanation: Number of atoms = n × L = 0.25 × 6.02 × 10^23 = 1.505 × 10^23 atoms. Helium is monatomic, so molecules = atoms.
4A compound contains 40.0% C, 6.7% H and 53.3% O by mass. What is its empirical formula? [Ar: C=12, H=1, O=16]
A.CHO
B.CH2O
C.C2H4O
D.C2H2O
Explanation: Assume 100 g: C 40.0/12=3.33 mol, H 6.7/1=6.7 mol, O 53.3/16=3.33 mol. Divide by 3.33 → C1 H2 O1 → CH2O.
5The empirical formula of a hydrocarbon is CH2 and its relative molecular mass is 56. What is its molecular formula? [Ar: C=12, H=1]
A.C2H4
B.C3H6
C.C4H8
D.C5H10
Explanation: Empirical Mr = 12+2=14. Number of empirical units = 56/14 = 4. Molecular formula = C4H8.
6In the reaction 2H2 + O2 → 2H2O, how many moles of water form when 0.40 mol of H2 reacts completely with excess oxygen?
A.0.20 mol
B.0.40 mol
C.0.80 mol
D.1.60 mol
Explanation: Mole ratio H2 : H2O = 2 : 2 = 1 : 1. So 0.40 mol H2 produces 0.40 mol H2O.
73.00 g of magnesium is burned in excess oxygen: 2Mg + O2 → 2MgO. What mass of MgO is formed? [Ar: Mg=24, O=16]
A.3.00 g
B.4.00 g
C.5.00 g
D.6.00 g
Explanation: n(Mg)=3.00/24=0.125 mol. Mole ratio Mg:MgO=1:1 so n(MgO)=0.125 mol. Mass=0.125×40=5.00 g.
810.0 cm^3 of 0.100 mol dm^-3 HCl is titrated with 0.100 mol dm^-3 NaOH. What volume of NaOH is required for complete neutralisation? [HCl + NaOH → NaCl + H2O]
A.5.0 cm^3
B.10.0 cm^3
C.20.0 cm^3
D.100 cm^3
Explanation: n(HCl)=0.0100 dm^3 × 0.100 = 0.00100 mol. 1:1 stoichiometry ⇒ n(NaOH)=0.00100 mol. V=n/c=0.00100/0.100=0.0100 dm^3=10.0 cm^3.
9At room conditions, 1 mol of an ideal gas occupies 24.0 dm^3. What volume does 0.125 mol of CO2 occupy under the same conditions?
A.1.50 dm^3
B.3.00 dm^3
C.12.0 dm^3
D.192 dm^3
Explanation: V = n × Vm = 0.125 × 24.0 = 3.00 dm^3.
10In N2 + 3H2 → 2NH3, 2.0 mol N2 and 3.0 mol H2 are mixed. Which is the limiting reactant and how many moles of NH3 can form?
A.N2 limiting; 4.0 mol NH3
B.H2 limiting; 2.0 mol NH3
C.N2 limiting; 2.0 mol NH3
D.H2 limiting; 3.0 mol NH3
Explanation: Required H2 for 2.0 mol N2 = 6.0 mol, but only 3.0 mol H2 is available → H2 limiting. From 3.0 mol H2: NH3 = (2/3)×3.0 = 2.0 mol.

About the STPM Chemistry 962 Exam

Chemistry (subject code 962) is a pure-science subject of the STPM, Malaysia's pre-university (Form Six) examination administered by Majlis Peperiksaan Malaysia. Under the sukatan pelajaran yang dimurnikan applying from Semester 1 STPM 2026, content is organised as Semester 1 General and Inorganic Chemistry (atoms/stoichiometry through Groups 2, 14, 17 and transition elements), Semester 2 Physical Chemistry (states of matter, equilibria, kinetics, energetics and electrochemistry), and Semester 3 Organic Chemistry (hydrocarbons through polymers). Candidates sit three centrally assessed written papers (962/1–962/3), each 60 marks and 26.67% over 1.5 hours, combining 20 MCQs with structured and essay questions, plus either school-based practical coursework (962/4, 20%) or a written practical alternative (962/5, 20%). Results use the STPM A-to-F grade point scale, with grade C and above a principal pass. This free practice bank is an English-language MCQ study adaptation emphasising genuine stoichiometry, thermochemistry and equilibrium calculations; it does not simulate structured/essay papers or certify practical laboratory competence.

Assessment

Under the sukatan dimurnikan (from Semester 1 STPM 2026): 962/1 General and Inorganic Chemistry, 962/2 Physical Chemistry, 962/3 Organic Chemistry — each 60 marks (26.67%), 1.5 hours, centrally assessed, with Section A 20 MCQs (20 marks), Section B 2 structured questions (14 marks) and Section C 2 essay questions (26 marks). Plus either 962/4 Chemistry Practical Coursework (15 experiments across three semesters, scaled to 45 marks / 20%) OR 962/5 Written Practical (3 structured questions, 45 marks / 20%, 1.5 hours). Candidate types 1 and 7 take Paper 4; types 3 and 8 and out-of-package Chemistry take Paper 5; type 2 may choose 4 or 5 subject to MPM approval.

Time Limit

962/1, 962/2, 962/3 and 962/5: 1 hour 30 minutes each; 962/4 coursework continuous across Semesters 1–3.

Passing Score

Graded A (4.00) to F (0.00); grade C (2.00) and above is a principal pass (lulus penuh), C-minus to D is a partial pass, and F is a fail.

Exam Fee

Private/individual private candidates: basic fee RM120.00 + RM90.00 per subject (MPM Peraturan dan Skema). Government and government-aided school candidates (types 1, 7, 8) are fee-exempt. Written-paper retake: RM50.00 per paper. (Majlis Peperiksaan Malaysia (Malaysian Examinations Council), under the Ministry of Education, Malaysia)

STPM Chemistry 962 Exam Content Outline

12%

Atoms, Molecules and Stoichiometry

Relative masses, mole concept, formulae and stoichiometry calculations.

12%

Equilibria

Chemical, ionic and solubility equilibria with Kc/Kp/Ka/Ksp calculations.

10%

Chemical Energetics

Enthalpy changes, Hess's law, Born–Haber cycles and bond enthalpies.

10%

Electronic Structure, Bonding and Periodicity

Atomic orbitals, bonding types, intermolecular forces and Period 3 trends.

10%

Inorganic Groups and Transition Elements

Groups 2, 14 and 17 plus first-row transition metals and complexes.

12%

States of Matter, Kinetics and Electrochemistry

Gas laws, rate laws, catalysts, cells, electrolysis and applications.

24%

Organic Chemistry

Introduction through hydrocarbons, haloalkanes, alcohols/phenols, carbonyls, carboxylic acids, amines and polymers.

10%

Assessment Format and Practical Skills Knowledge

962 paper structure, coursework vs written practical rules, and MCQ-testable practical concepts — not hands-on certification.

How to Pass the STPM Chemistry 962 Exam

What You Need to Know

  • Passing score: Graded A (4.00) to F (0.00); grade C (2.00) and above is a principal pass (lulus penuh), C-minus to D is a partial pass, and F is a fail.
  • Assessment: Under the sukatan dimurnikan (from Semester 1 STPM 2026): 962/1 General and Inorganic Chemistry, 962/2 Physical Chemistry, 962/3 Organic Chemistry — each 60 marks (26.67%), 1.5 hours, centrally assessed, with Section A 20 MCQs (20 marks), Section B 2 structured questions (14 marks) and Section C 2 essay questions (26 marks). Plus either 962/4 Chemistry Practical Coursework (15 experiments across three semesters, scaled to 45 marks / 20%) OR 962/5 Written Practical (3 structured questions, 45 marks / 20%, 1.5 hours). Candidate types 1 and 7 take Paper 4; types 3 and 8 and out-of-package Chemistry take Paper 5; type 2 may choose 4 or 5 subject to MPM approval.
  • Time limit: 962/1, 962/2, 962/3 and 962/5: 1 hour 30 minutes each; 962/4 coursework continuous across Semesters 1–3.
  • Exam fee: Private/individual private candidates: basic fee RM120.00 + RM90.00 per subject (MPM Peraturan dan Skema). Government and government-aided school candidates (types 1, 7, 8) are fee-exempt. Written-paper retake: RM50.00 per paper.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

STPM Chemistry 962 Study Tips from Top Performers

1Drill mole and stoichiometry until automatic: n = m/M, gas molar volume, limiting reagent and percentage purity — these underpin Sem 1 and volumetric practical calculations.
2For equilibria, always write a balanced equation, set up an ICE table, and substitute into Kc or Kp; check units and whether solids/liquids are omitted.
3Practise Hess's law cycles and Born–Haber diagrams with labelled arrows; sign errors (exo vs endo) are the most common mark losses.
4Learn Period 3 oxide acid-base behaviour and Group 2/14/17 trends with one concrete reaction example each.
5For organic, master reagents and conditions for key conversions (alkene hydration, haloalkane SN1/SN2, alcohol oxidation, carbonyl tests) rather than memorising every equation in isolation.
6Know the 962 paper map: 20 MCQs + structured + essays each semester, plus coursework or written practical at 20% — budget revision time accordingly.
7After MCQ concept work, practise past structured and essay questions under timed conditions; MCQs alone cannot replace Paper 4 laboratory skills.

Frequently Asked Questions

What is STPM Chemistry (subject code 962)?

Chemistry (962) is the STPM Form Six chemistry subject administered by Majlis Peperiksaan Malaysia. Under the refined (dimurnikan) syllabus from Semester 1 STPM 2026 it covers General and Inorganic Chemistry (Sem 1), Physical Chemistry (Sem 2) and Organic Chemistry (Sem 3), with written papers plus coursework or a written practical.

How is STPM Chemistry assessed?

Papers 962/1, 962/2 and 962/3 are each 60 marks (26.67%) over 1.5 hours: 20 MCQs, 2 structured questions and 2 essays. Candidates also take either 962/4 coursework (15 experiments, 20%) or 962/5 written practical (3 structured questions, 45 marks, 20%, 1.5 hours), depending on candidate type.

What does STPM Chemistry cost?

Private and individual private candidates pay a basic fee of RM120.00 plus RM90.00 per subject (MPM Peraturan dan Skema Peperiksaan STPM). Government and government-aided school candidates (types 1, 7 and 8) are exempt. Retaking a written paper costs RM50.00 per paper.

Are these practice questions the same as the official exam?

No. Official papers mix MCQs with structured and essay questions, and include either school practical coursework or a written practical. This bank is an English-language MCQ study adaptation of syllabus knowledge (including genuine calculation items). It is not an official MPM paper, not an essay/structured simulation, and not a substitute for laboratory practical competence.

What topics must I calculate for STPM Chemistry?

High-value calculation areas include stoichiometry (moles, reacting masses, gas volumes), chemical energetics (Hess's law, bond enthalpies, Born–Haber), and equilibria (Kc, Kp, Ka/Kb/pH, Ksp), plus gas laws, kinetics and electrochemistry quantities in Semester 2.

Who takes Paper 4 versus Paper 5?

Per MPM's scheme: candidate types 1 and 7 take 962/4 coursework; types 3 and 8 and candidates taking Chemistry outside the school package take 962/5 written practical; type 2 may choose Paper 4 or 5 subject to MPM approval.

How is STPM Chemistry graded?

STPM uses a cumulative grade point scale from A (4.00) to F (0.00). Grade C (2.00) and above is a principal pass (lulus penuh). The three written papers and the practical component combine into the subject grade under MPM rules.