A Level Chemistry has a reputation for being one of the toughest A Levels.

But what actually makes it challenging, and how does it compare with GCSE Chemistry?

How A Level Chemistry compares to GCSE

GCSE Chemistry introduces basic principles such as bonding, reactions, and simple calculations.

At A Level, these ideas are revisited in much greater depth with added complexity, problem solving, and mathematical content.

For example, GCSE bonding covers ionic and covalent structures, while A Level explores orbital hybridisation, energetics, and molecular geometry in detail.

See the full list of AQA Chemistry topics.

Why students find it difficult

The subject demands strong conceptual understanding, not just memorisation.

Mathematics makes up around 25% of the exam, and data analysis skills are tested frequently.

Exams also require extended written answers, which means applying your knowledge to unfamiliar scenarios rather than repeating facts.

Read: Is a strong Maths GCSE necessary for A Level Chemistry?

Skills you’ll need to succeed

• Strong foundation in GCSE Chemistry and Maths.
• Ability to apply theory to practical and data-based questions.
• Good organisation for balancing content-heavy revision.
• Problem-solving and resilience when faced with challenging questions.

Explore Royal Society of Chemistry learning resources.

Support available for learners

With the right support, A Level Chemistry becomes manageable and rewarding.

Distance learning courses include structured study materials, tutor support, and guidance on booking exams and practicals.

View the A Level Chemistry course at Study from Home.

Frequently Asked Questions

Is A Level Chemistry harder than Biology?

Many students find Chemistry more conceptually challenging, while Biology requires more memorisation. It depends on your strengths.

Is A Level Chemistry one of the hardest A Levels?

Yes, it is widely regarded as one of the toughest, but also one of the most respected by universities and employers.

Can I do A Level Chemistry without GCSE Chemistry?

Some providers allow it if you have strong grades in other sciences. Read our guide on entry requirements.

Ready to take the step up?