Sir Usman Khan
Your Chemistry Instructor
Cambridge Assessment International Education O Level • IGCSE • A Level

Sir Usman Khan.

Over two decades shaping scientific minds and demystifying Cambridge Chemistry. Breaking complex reaction mechanisms into intuitive, exam-tested mental models.

Watch Lecture Samples
TARGET SESSIONS OCT / NOV 2026 • MAY / JUNE 2026
CHEMISTRY SPECIALIST
Sir Usman Khan - Chemistry Specialist

Lead Instructor

Sir Usman Khan

Selected Subject

CHEMISTRY (5070 / 0620)

GEC / IGCSE
20+ Years
Classroom Mastery
15,000+
Students Coached
92%
A* & A Distinction Rate
100%
Cambridge Syllabus Coverage
Academic Vision

From the classroom to academic mastery.

Most students don’t fail Chemistry because it is hard—they struggle because they memorize recipes rather than grasping fundamental atomic principles.

Philosophy 01

Conceptual foundations first.

Stoichiometry, bonding, and kinetics taught as logical physical consequences, not dry formula sheets.

Philosophy 02

Past-paper forensic analysis.

Dissecting examiner mark schemes across 15+ exam series to eliminate common wording pitfalls and silly mark losses.

Philosophy 03

Mentorship that is more human.

Continuous feedback, weekly topic diagnostics, and dedicated doubt-clearing sessions that keep learners accountable.

The Pedagogical Difference

What twenty years inside education has taught me.

Insight 01

When Explanation Becomes Cheap, Rigor Becomes Sacred.

Anyone can watch a YouTube summary. Real learning happens when the student can predict ionic equilibrium reactions under timed pressure without glancing at notes.

LEARN MORE → Concept Discipline
Insight 02

The Student Who Practices Unsupervised Learns True Ownership.

Our assignment system is designed not just for checking homework, but for exposing student misconceptions early before CIE invigilators catch them.

LEARN MORE → Diagnostic Testing
Insight 03

Why Mole Questions Fall Apart (And How to Fix It).

Students memorize unit cancellation formulas without understanding stoichiometric ratios. We teach a 3-step structural visualization that works on every paper.

LEARN MORE → Exam Strategy
Free Trial Masterclass

Chemistry is where the ideas meet reality.

Watch Sir Usman Khan dissect organic reaction mechanisms, alcohol oxidation, and condensation polymerization in this signature demonstration lecture.

1 Complete breakdown of Functional Groups & Isomerism.
2 Cambridge tricky mark-scheme keywords highlighted.
3 Interactive live Q&A format accessible on mobile & PC.
ALCOHOLS
O/A Level Chemistry 5070 / 9701

Alcohols Basics & Synthesis

Sir Usman Khan • SWK Academy Exclusive

Structured Curriculum

Learn with a teacher. Leave with a method.

Enroll for full syllabus cycles, past-paper crash series, or targeted topical modules for Cambridge CAIE examinations.

CAIE 5070 Regular Batch

O Level Chemistry

For Oct/Nov 2025 & May/June 2026 students starting foundational work.

Paper 1 (MCQ), Paper 2 (Theory), Paper 4 (ATP)
Weekly topical assessments & checked homework
Complete SWK Resource Booklet included
Most Popular
CAIE 0620 / 0971 Seats Filling Fast

IGCSE Chemistry

Extended syllabus with rigorous focus on experimental design and calculations.

Covers Core & Extended Syllabus Sections
Paper 6 Alternative to Practical Deep Dive
Live Zoom interactive & In-person sessions
CAIE 9701 AS & A2 Batch

A Level Chemistry

Advanced Physical, Inorganic & Organic synthesis for top medical/engineering aspirants.

Full AS & A2 syllabus comprehensive coverage
Paper 5 (Planning, Analysis, Evaluation) clinic
One-on-one doubt clarification slots
Limited Intake Capacity

Education should produce capable, confident minds.

Admissions for the upcoming October / November 2025 and May / June 2026 examination cycles are open. Register to reserve your orientation slot.

Student Voices

Proven results across exam sessions.

★★★★★

"I used to get confused with Organic synthesis chains and consistently lost marks in Paper 2. Sir Usman Khan simplified the logic so well that I scored an A* in May/June."

HA
Hamza Ahmed
Grade: A* (O Level Chemistry)
★★★★★

"Sir Usman’s topical worksheets and strict mock assessments were identical to what appeared on my Cambridge paper. SWK Solutions provides the absolute best environment."

ZF
Zainab Fatima
Grade: A* (IGCSE Chemistry)
★★★★★

"The past-paper solving sessions alone are worth it. You learn how examiners grade answers, where keywords matter, and how to finish 20 minutes before time."

MR
Muhammad Rayan
Grade: A (A Level Chemistry 9701)