Subjects
Chemistry practice, free.
Solutions, gases, the mole, equilibrium, atoms and bonding, from school and entrance exams. Every question has an explanation, and the tests are timed like the real thing.
- 161questions
- 5topics
- 2exams covered
- Freeno plans or paywalls
Chemistry in Saudi Arabia
Practise chemistry with the exams you can take in Saudi Arabia.
Where do you want to start?
- 117 questions · 3 topicsOrganic chemistryCarbon compounds, their groups and reactions.Electromagnetism, Quantum Physics, Organic Mechanisms and Kinetics · Physical and organic chemistry · Atomic Structure, Bonding, Reactions and Organic Chemistry
- 29 questions · 1 topicsPhysical chemistryThe mole, solutions, gases, equilibrium and rates: the calculations of chemistry.Moles, gases and solutions
- 15 questions · 1 topicsAtoms and bondingAtomic structure, the periodic table and how atoms bond.Periodic table and bonding
The most practised topics.
Each topic has its own list of questions with explanations. Pick the exam you are preparing for.
Electromagnetism, Quantum Physics, Organic Mechanisms and Kinetics
43 questions across 1 exam
Physical and organic chemistry
43 questions across 1 exam
Atomic Structure, Bonding, Reactions and Organic Chemistry
31 questions across 1 exam
Moles, gases and solutions
29 questions across 1 exam
Periodic table and bonding
15 questions across 1 exam
Real questions, worked answers.
- Electromagnetism, Quantum Physics, Organic Mechanisms and Kinetics · Saudi Secondary School CertificateAccording to Lenz's law, what is the direction of an induced electric current in a closed conducting loop?See the answer and explanation →
- Physical and organic chemistry · Saudi Secondary School CertificateFor N₂ + 3H₂ ⇌ 2NH₃ the equilibrium concentrations are [N₂] = 3, [H₂] = 2 and [NH₃] = 5 mol/L. What is Kc?See the answer and explanation →
- Atomic Structure, Bonding, Reactions and Organic Chemistry · Tahsili SAAT (Saudi Arabia)What is the ground-state electron configuration of a neutral iron atom ( 26 Fe)?See the answer and explanation →
Chemistry in your exam.
How to practise chemistry.
- 1
Balance the equation first
Most mole and mass questions fall apart when the equation is not balanced. Do it before any numbers.
- 2
Write the units and the formula you use
Moles, grams, litres and concentration are easy to mix up. Units on every line keep you honest.
- 3
Learn trends as patterns
Periodic trends are a few rules, not a long list. Learn why they go up or down across a period and down a group.
- 4
Do a rough check
Ask whether the answer is the right size. A negative concentration or a mass larger than you started with means a slip.
- 5
Redo your mistakes after a week
Repeat the questions you got wrong after a few days. That is when a method either sticks or fades.
Questions, answered.
- Is the chemistry practice really free?
- Yes. Every question, explanation, mock test and flashcard deck is free, with no plans or paywalls.
- Which exams does it cover?
- Chemistry questions from Saudi Secondary School Certificate, Tahsili SAAT (Saudi Arabia). There are 161 chemistry questions on this page's list today.
- Does every question have an explanation?
- Yes. Each question has an explanation with the working or the key idea, and you can open any question on its own page.
- Can I take a timed test?
- Yes. The mock tests below run on a real timer and show a full review with explanations at the end.