Q1 · Difficulty 1/3
During condensation a gas changes to a:
- plasma
- gas
- liquid
- solid
Show answer & explanation
✓ Answer: C — liquid
Condensation is gas → liquid.
OCR · GCSE · Chemistry
Free OCR GCSE Chemistry
Practice Paper
8 mixed-difficulty practice questions in the style of real OCR GCSE papers — answers, mark-scheme-style explanations, and the official exam structure all on one page.
Take a Mini Mock →What the real OCR GCSE Chemistry paper looks like
Paper 1
Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 1-4 of the specification.
Paper 2
Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 5-8 of the specification.
Paper 3
Where applicable — e.g. Combined Science, Languages. Includes synoptic and applied questions.
Total exam time: ~3 hours across two or three papers.
Grading: Grades: 9 (highest) to 1 (lowest), with U (ungraded). A grade of 4 is a standard pass; 5 is a strong pass.
Grading: Grades: 9 (highest) to 1 (lowest), with U (ungraded). A grade of 4 is a standard pass; 5 is a strong pass.
Mini practice paper: 8 questions
Mixed-difficulty questions from across the Chemistry syllabus. Tap "Show answer" after each to check yourself.
Q2 · Difficulty 1/3
A substance made of only one type of atom is an:
- alloy
- element
- compound
- mixture
Show answer & explanation
✓ Answer: B — element
An element contains one type of atom.
Q3 · Difficulty 1/3
In the periodic table, elements in the same vertical column form a:
- period
- shell
- block only
- group
Show answer & explanation
✓ Answer: D — group
A vertical column is a group.
Q4 · Difficulty 2/3
A burette is used in a titration to measure:
- gas pressure
- a variable volume of liquid accurately
- temperature
- mass
Show answer & explanation
✓ Answer: B — a variable volume of liquid accurately
A burette delivers accurate, variable volumes.
Q5 · Difficulty 2/3
Acids produce which ion in aqueous solution?
- Cl⁻
- H⁺
- OH⁻
- Na⁺
Show answer & explanation
✓ Answer: B — H⁺
Acids release hydrogen ions, H⁺.
Q6 · Difficulty 2/3
The test for hydrogen gas is a:
- glowing splint relights
- limewater turns milky
- damp litmus bleaches
- lit splint gives a squeaky pop
Show answer & explanation
✓ Answer: D — lit splint gives a squeaky pop
Hydrogen gives a squeaky pop with a lit splint.
Q7 · Difficulty 1/3
Group 7 elements are known as the:
- halogens
- alkali metals
- noble gases
- alkaline earth metals
Show answer & explanation
✓ Answer: A — halogens
Group 7 are the halogens.
Q8 · Difficulty 1/3
Which is a finite resource obtained from the Earth?
- Tidal energy
- Crude oil
- Sunlight
- Wind
Show answer & explanation
✓ Answer: B — Crude oil
Crude oil is a finite (non-renewable) resource.
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OCR GCSE Chemistry FAQ
What does the OCR GCSE Chemistry exam look like?
The OCR GCSE Chemistry exam is structured across 3 components. Paper 1: Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 1-4 of the specification. Paper 2: Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 5-8 of the specification. Paper 3: Where applicable — e.g. Combined Science, Languages. Includes synoptic and applied questions. Total exam time: ~3 hours across two or three papers.
Can I download a free OCR GCSE Chemistry past paper?
Real OCR past papers are published directly by OCR on their official website. Kramizo doesn't redistribute copyrighted past papers, but we do generate free AI-written practice papers in the exact same style — same command words, same difficulty tier, same mark conventions. Use this practice paper as warm-up, then time yourself on official past papers before exam day.
How is OCR GCSE Chemistry graded?
Grades: 9 (highest) to 1 (lowest), with U (ungraded). A grade of 4 is a standard pass; 5 is a strong pass. Kramizo's practice questions are tagged with difficulty 1-3 mapping roughly to the lower, middle, and top grade boundaries you'll encounter in the real exam.