Free Practice Questions for SINF6 Chemistry
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Key Facts: SINF6 Chemistry Exam
30 October 2026
2026 Chemistry paper date
MEHRD 2026 National Examination Timetable
3 hours
Paper duration plus 10 minutes reading time
MEHRD 2026 National Examination Timetable
No fee
National examination fees are prohibited for Year 12
MEHRD administrative instruction on school fees
53.8%
Year 12 national pass rate, 2025 cohort
MEHRD 2025 National Examination Results
265–500
Year 12 aggregate score range reported by MEHRD
MEHRD 2023 National Examination Results
100
Free practice questions in this bank
OpenExamPrep question bank
SINF6 Chemistry is a three-hour national written paper sat by Form 6 students across Solomon Islands, scheduled for Friday 30 October 2026. There is no examination fee, and MEHRD publishes no fixed pass mark: subject results feed a Year 12 aggregate reported on a 265–500 range. This free bank supplies 100 worked multiple-choice questions across the seven syllabus strands, including a Pacific-focused applied chemistry section on ocean acidification and desalination.
Sample SINF6 Chemistry Practice Questions
Try these sample questions to review concepts for the SINF6 Chemistry exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1How many protons, neutrons, and electrons are present in a neutral atom of the chlorine-37 isotope (atomic number 17)?
2Naturally occurring chlorine consists of 75.8% chlorine-35 (atomic mass 34.97 u) and 24.2% chlorine-37 (atomic mass 36.97 u). What is the calculated relative atomic mass of chlorine?
3What is the ground-state electron configuration of the iron(III) ion, Fe3+ (atomic number Z = 26)?
4Which statement best explains why aluminum (Z = 13) has a lower first ionization energy than magnesium (Z = 12)?
5Which list arranges the single covalent bonds in order of INCREASING bond polarity (least polar to most polar)?
6According to VSEPR theory, what is the molecular geometry and electron domain arrangement of sulfur tetrafluoride, SF4?
7Why is xenon tetrafluoride (XeF4) classified as a non-polar molecule despite containing polar Xe-F bonds?
8What hybridization state and H-C-C bond angle are present in ethyne (HC≡CH)?
9Magnesium oxide (MgO) has a significantly higher lattice energy than sodium chloride (NaCl). What are the primary reasons for this difference?
10Water (H2O) has a substantially higher boiling point than hydrogen sulfide (H2S) despite having a smaller molar mass. Which intermolecular force explains this anomaly?
About the SINF6 Chemistry Exam
The Solomon Islands National Form Six Examination (SINF6) Chemistry paper is the national Year 12 chemistry assessment, administered by MEHRD's National Education Assessment Division and timetabled as part of the Solomon Islands School Certificate Level Two (SISCL2). Candidates sit a single three-hour question-and-answer booklet covering atomic structure and bonding, stoichiometry, energetics and kinetics, equilibrium and acid-base chemistry, redox and electrochemistry, organic chemistry, and applied environmental chemistry. In 2026 the Chemistry paper is scheduled for Friday 30 October. The 100 questions on this page are an English-language multiple-choice study adaptation of that syllabus, intended for revision rather than as a simulation of the official written paper.
Exam sponsor: Ministry of Education and Human Resources Development (MEHRD), National Education Assessment Division (NEAD). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Single 3-hour question-and-answer booklet with 10 minutes of reading time. All sections are compulsory. Candidates show working for quantitative chemistry, draw structures and mechanisms, and write extended explanations directly in the booklet.
Time Limit
3 hours plus 10 minutes reading time (session 9.00 am – 12.10 pm)
Passing Score
MEHRD does not publish a fixed percentage pass mark. Subject scores feed a Year 12 aggregate; for the 2023 sitting MEHRD reported a minimum aggregate of 265 within an aggregate range of 265–500, and 58.8% of that cohort reached or exceeded it.
Exam / Certification Fees
No fee. MEHRD's administrative instruction prohibits schools from charging national examination fees for Year 9, Year 11 and Year 12 candidates.
Exam sponsor websiteReported exam pass rate: 53.8% national pass rate for the 2025 Year 12 cohort. MEHRD released the 2025 national examination results on 14 and 16 January 2026 under the Education Act 2023. The 53.8% figure is the overall Year 12 pass rate; MEHRD reported chemistry among the science subjects sitting just above 50% in 2024, with an improved national mean in 2025. This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
Atomic Structure and Bonding
Isotopes and relative atomic mass, electron configurations, ionisation energy trends, bond polarity, VSEPR shapes, hybridisation, lattice energy and intermolecular forces.
Stoichiometry and Chemical Calculations
Moles, empirical and molecular formulae, concentration and dilution, limiting reagents, yield and atom economy, gas laws, titration and gravimetric analysis.
Energetics and Kinetics
Enthalpy changes, calorimetry, Hess's law, bond enthalpies, Born-Haber cycles, rate laws, the Arrhenius equation, mechanisms and catalysis.
Equilibrium and Acids and Bases
Kc and Kp, Le Chatelier's principle, the Haber process, pH calculations, buffers, indicators, salt hydrolysis and solubility product.
Oxidation-Reduction and Electrochemistry
Oxidation states, redox balancing and titration, electrode potentials and cell EMF, electrolysis, Faraday's laws, disproportionation and corrosion protection.
Organic Chemistry
Nomenclature, isomerism, reaction mechanisms, alcohol oxidation, carbonyl tests, reduction, esterification, polymers and relative acidity.
Environmental and Applied Chemistry
Ocean acidification, biochemical oxygen demand, metal extraction, ozone depletion, greenhouse gas absorption, the Contact process and reverse osmosis.
Preparing for the SINF6 Chemistry Exam
What You Need to Know
- Passing score: MEHRD does not publish a fixed percentage pass mark. Subject scores feed a Year 12 aggregate; for the 2023 sitting MEHRD reported a minimum aggregate of 265 within an aggregate range of 265–500, and 58.8% of that cohort reached or exceeded it.
- Assessment: Single 3-hour question-and-answer booklet with 10 minutes of reading time. All sections are compulsory. Candidates show working for quantitative chemistry, draw structures and mechanisms, and write extended explanations directly in the booklet.
- Time limit: 3 hours plus 10 minutes reading time (session 9.00 am – 12.10 pm)
- Exam / certification fees: No fee. MEHRD's administrative instruction prohibits schools from charging national examination fees for Year 9, Year 11 and Year 12 candidates. Official sources
Using Our Practice Resources
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
SINF6 Chemistry: Suggested Study Strategy
Frequently Asked Questions
What is the SINF6 Chemistry examination?
It is the national Form 6 (Year 12) chemistry paper administered by MEHRD's National Education Assessment Division, forming part of the Solomon Islands National Form Six School Certificate, now timetabled as the Solomon Islands School Certificate Level Two (SISCL2).
When is the 2026 SINF6 Chemistry examination?
MEHRD has scheduled Chemistry for Friday 30 October 2026, with 10 minutes of reading time and a 3-hour paper running from 9.00 am to 12.10 pm. Economics is timetabled on the same day.
How many questions are on the official paper?
MEHRD does not publish a fixed item count. The paper is a single question-and-answer booklet with compulsory sections that combine multiple choice with written calculation and extended response.
Is this practice bank the same format as the real exam?
No. The official paper requires written working, structural formulae and extended explanations. These 100 items are an English-language multiple-choice study adaptation covering the same syllabus content, designed for revision and self-checking rather than format simulation.
Is there a fee to sit SINF6 Chemistry?
No. MEHRD's administrative instruction to schools prohibits charging national examination fees for Year 9, Year 11 and Year 12 candidates.
What mark do I need to pass?
MEHRD does not publish a fixed percentage pass mark per subject. Subject scores contribute to a Year 12 aggregate; for the 2023 sitting MEHRD reported a minimum aggregate of 265 on a 265–500 range, and the overall 2025 Year 12 pass rate was 53.8%.
Can I use a calculator?
Candidates are expected to bring a silent, non-programmable scientific calculator for the quantitative chemistry in the paper. Mobile phones are not permitted in the examination room.
In what language is the examination set?
English. English is the language of instruction and assessment in Solomon Islands secondary schools, so this bank is in the same language as the official paper.