A Level · Edexcel · Spec YCH11
Chemistry A Level Edexcel online classes
Expert online Chemistry tuition for Pearson Edexcel A Level — covering every topic from the YCH11 syllabus with exam-focused teaching.
How we teach Chemistry
Edexcel’s International A Level Chemistry (YCH11) is the modular option, and for a certain kind of student in Pakistan that is decisive.
Six units, sat in stages. Units 1, 2 and 3 make up the IAS and can be banked at the end of the first year; Units 4, 5 and 6 complete the full International A Level. Marks carry forward. A unit that goes badly can be resat without putting the rest of the qualification back on the table, and a unit that goes well is money in the bank. Compared with a linear board — where two years of work meet a single exam season — this is a fundamentally different risk profile, and it is why families who have been burned once by a bad exam week often move here.
No practical endorsement, and why that matters here. This is the other reason to choose Edexcel, and it is one competitors rarely explain properly.
YCH11 is 100% examined by written paper. Practical skills are assessed in Units 3 and 6 — two dedicated written exams covering Core Practicals 1–8 and 9–16 respectively — and there is no separately reported practical endorsement to pass, no teacher assessment, no lab logbook signed off over two years.
For a private candidate in Pakistan, or a student whose school laboratory cannot support a full A Level practical programme, that removes an obstacle which on other boards can be genuinely hard to solve. It does not mean practical work stops mattering: Units 3 and 6 together carry 20% of the qualification, and they are demanding papers. But the demand is intellectual rather than logistical — read a method, judge the apparatus, calculate the uncertainty, explain why a result is unreliable and how you would fix it. We teach those two units as subjects in their own right rather than as revision afterthoughts, because 20% is too much to improvise.
Where students actually lose grades. Unit 4 is the wall. Rates, equilibria and further organic arrive at once, the mathematics steps up, and students who reached the end of the IAS on recall alone find recall is no longer enough. We front-load the algebra and the reasoning here deliberately.
Unit 5 is heavy on content — transition metals, organic nitrogen chemistry, NMR — and rewards structured revision more than raw ability. And across all four theory units, the marks that quietly disappear are the ones for explanation: writing “it increases” where the mark scheme wants a mechanism, a reason and a consequence.
Modular exams reward exactly one thing above all — fixing a weak unit before it is sat, not after. Our classes are live, capped small, and organised around that: weekly marked homework, unit-by-unit mock papers, and an honest reading of where the grade stands while there is still time to move it.
Comparing boards or levels? See every route we teach on our chemistry online tuition in Pakistan overview.
Assessment structure
Syllabus code YCH11 — all papers are external written examinations unless noted.
| Unit 1 – Structure, Bonding and Introduction to Organic Chemistry | 80 marks · 1 hr 30 min · 20% of IAL |
| Unit 2 – Energetics, Group Chemistry, Halogenoalkanes and Alcohols | 80 marks · 1 hr 30 min · 20% of IAL |
| Unit 3 – Practical Skills in Chemistry I (written exam) | 50 marks · 1 hr 20 min · 10% of IAL |
| Unit 4 – Rates, Equilibria and Further Organic Chemistry | 90 marks · 1 hr 45 min · 20% of IAL |
| Unit 5 – Transition Metals and Organic Nitrogen Chemistry | 90 marks · 1 hr 45 min · 20% of IAL |
| Unit 6 – Practical Skills in Chemistry II (written exam) | 50 marks · 1 hr 20 min · 10% of IAL |
| Practical endorsement | None — 100% examined by written paper |
Topics we cover
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