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Free for every IB student
Every IB exam question, sorted. Your whole diploma, in one place.
40,000 exam questions with mark schemes, filtered to your subjects and units. Whole papers to sit under exam timing. Flashcards that come back before you forget. And the trackers that keep your IAs off the last weekend.
Three questions before signing up Built by IB students
[Maximum mark: 5]
A car bought for $24 000 loses 18% of its value each year.
- (a)Find the value of the car after 3 years.[2]
- (b)Find the first year in which it is worth less than $8 000.[3]
- 40,000+
- Questions with mark schemes
- 12
- Subjects covered
- 52
- Prescribed papers you can sit
- 100%
- Free, no trial
Practice
Every exam question, filtered to the unit you are on
Choose a subject and a unit and get the questions the IB has actually asked on it, each with its mark scheme. Mark yourself, flag what you got wrong, and the weak units surface on your dashboard.
- Q1Bonding
- Q2Enthalpy
- Q3Kinetics
- Q4Redox
Calculate the enthalpy change for the reaction, using the bond enthalpies given in section 12 of the data booklet.
Mark scheme
bonds broken 4463 kJ / bonds formed 5010 kJ M1
ΔH = −547 kJ mol⁻¹ A1
Exam conditions
Sit a whole paper at the real duration, with your booklet beside it
Pick your subject, level and paper. Baccly builds a sitting with the right mark total and the real time limit, hides the mark schemes until you hand in, and keeps your data booklet open in the next column.
Chemistry HL · Paper 1
19 questions · 76 marks
1:42:08
Booklet
Progress
It remembers what you got wrong and brings it back
Rate yourself against the mark scheme and Baccly schedules the question to return before you forget it. Your streak, your weakest units and what is due today all sit on one dashboard.
Streak
12 days
Due back
8 cards
Getting started
1
Pick your subjects
Tell Baccly what you take and at what level. Everything after this is filtered to your six.
2
Practise by unit
Work through real exam questions on the topic you are revising, with the mark scheme on each one.
3
Sit a full paper
When the units are solid, do a whole paper at the real duration and mark yourself honestly.
What students say
Unedited, from people using Baccly for their own exams.
Baccly lowkey saved me from Chem HL suffering. The topic papers thing? Best feature ever.
The website is so organized and easy to navigate. Not only did it help me improve in every subject with its endless questions but also helped me plan and organize my studies.
Math AA HL felt impossible before Baccly and their question bank. I owe Baccly soo much.
I went from a 5 to a 7 in Physics SL using Baccly. Thank you!
Start with one paper and see where you actually are.
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