4AB › Chemistry - Tools
Chemistry - Tools
Explore · Learn · Practice · ExcelPractise, look up and calculate — the working tools of chemistry.
13 things to openChemistry Calculator
Free online calculator suite for chemistry, physics, maths and accounting — molar mass, equation balancer, periodic table, pH, kinematics, derivatives and more.
Interactive Periodic Table
A premium, interactive periodic table of all 118 elements. Tap any element for atomic mass, electron configuration, physical and chemical data — then open…
Chemistry Question Bank
4,141 chemistry PYQs + AI checker
Questions by topic
Every question with its answer, chapter by chapter
Symmetry Lab
Point groups in 3D
Chemistry Typing
Formulas & equations for Word
Dreamers Quiz
Free chemistry quizzes
Organic, inorganic and physical chemistry
Each branch: its previous-year questions chapter by chapter, the concept notes that explain them, and the tools to check your working.
Organic chemistry1,107 previous-year questions
Mechanisms, stereochemistry, pericyclic reactions and spectroscopy — practise the PYQs, then read the concept notes.
Inorganic chemistry1,509 previous-year questions
Coordination, organometallic and main-group chemistry with the periodic table beside them.
Physical chemistry1,525 previous-year questions
Quantum chemistry, thermodynamics, kinetics and electrochemistry — numericals with the calculators that check them.
All 4,141 chemistry PYQs are on questions by chapter and by exam and year; the question bank adds practice and the AI answer checker. Read the 4AB concept notes and the calculator knowledge base, open all 68 calculator tools, the periodic table or the Symmetry Lab. Beyond chemistry: all free tools, projects and everything on 4AB.