Eduqas A-level Chemistry grade boundaries 2025: A* to E, paper by paper

Eduqas A-level Chemistry grade boundaries June 2025

Every figure is copied from Eduqas GCE A Level Grade Points, June 2025, which Eduqas last updated on 13 August 2025. A boundary is the lowest total, out of 300, that earns the grade.

For Physics, Biology, Computer Science and the rest of the Eduqas list, use Eduqas A-level grade boundaries 2025.

The papers behind the total

Eduqas's Chemistry specification sets three written components. Component 1, Physical and Inorganic Chemistry, and Component 2, Organic Chemistry and Analysis, each last 2 hours 30 minutes, carry 120 marks and are worth 40% of the qualification. Component 3, Chemistry in Practice, lasts 1 hour 15 minutes, carries 60 marks and is worth 20%. The content is in our Eduqas A-level Chemistry guide, and the reference data is in the Eduqas Chemistry data booklet guide.

The file adds notional boundaries for each paper. Eduqas says they are a guide for centres and not official grades, so the grade is worked out from the total only.

A worked example

A student scores 70 on Component 1, 74 on Component 2 and 41 on Component 3. The total is 185 out of 300. In the table, 185 is above 159 (B) and below 187 (A), so the grade is a B, 2 marks short of an A. Those 2 marks could come from anywhere: the grade is decided by the total, not by one paper.

A flat year, compared with 2024

The June 2024 file is the comparison. Change is 2025 minus 2024.

Chemistry barely moved: A* and A each fell by 1 mark, the C boundary stayed at 132, and E rose by 2. That makes it the steadiest of the four Eduqas subjects we cover. In the same year the Biology A* boundary rose from 214 to 230, a jump of 16.

The practical paper is the generous one

Component 3 is the shortest and the smallest, yet its boundaries are the highest as a share of the paper. An A needs 41 out of 60, which is 68%, and even an E needs 21, or 35%. Component 1 asks for 58% at an A. So the shortest paper asks for the largest share of its marks. Component 1's boundaries fell by 2 at A* to C in 2025, from 83 to 81 at A*.

Reading the table when you revise

• An A is 62%. That is the working target for a student who wants an A in this table.
• The A* to A gap is 28 marks. That is about 9% of the total.
• Plan for a shift. Chemistry moved by 2 marks or fewer in 2025, but nothing guarantees that again.

Today's paper as a check

A-level Chemistry: Year 1 and Year 2 both have a new 8-question paper each day on our practice papers. It is worth 25 to 35 marks and was not set by Eduqas. Turn your mark into a percentage and see where it sits against the share column.

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UK · A-levelEduqas A-level grade boundaries 2025: A* to E marksEduqas's official June 2025 A-level boundaries for Physics, Chemistry, Biology and Computer Science and every other subject, compared with 2024.