Rotate, drag, animate. 50 interactive models and reference tools for the concepts students find hardest to picture — built for JEE & NEET Chemistry. Tap any card to open it full-screen.
Real s, p and d shapes — lobes, phases and nodal planes you can spin in 3D.
↗sp to sp³d² — VSEPR shapes and bond angles — or type any formula (XeF₄, ClF₃…) and build it in 3D.
↗Fill MOs for H₂ to Ne₂ and their ions — s–p mixing, bond order, magnetism, live.
↗Side-on p-orbital overlap and the π cloud above and below the bond.
↗Six p-orbitals merging into the delocalised aromatic sextet.
↗σ, π and δ d-orbital overlap — the quadruple bond of Re₂Cl₈²⁻.
↗Bent bonds in cyclopropane and 3-centre bridges in diborane.
↗Nitrogen turning inside-out through a planar sp² transition state.
↗Tap two Bohr levels: watch the jump, get λ worked out, see Lyman to Pfund lines.
SC, BCC, FCC — atoms per cell, coordination number and packing efficiency.
↗HCP vs CCP packing, tetrahedral & octahedral voids, and NaCl / CsCl / ZnS / diamond lattices.
↗1D → 2D → 3D packing animated: square & hexagonal layers, SC, BCC, HCP and CCP/FCC, every void type, and where TVs & OVs sit in FCC.
↗Interactive plots — reaction-order shapes, the Arrhenius line, and radial probability of orbitals.
↗Zero, first and second order side by side — the straight plot tells you the order.
↗Daniell cell & salt bridge, primary/secondary batteries and the H₂–O₂ fuel cell, with electrode reactions.
↗Speed distribution with a live temperature slider; pin curves to compare.
↗Exact pH as you titrate: equivalence, half-equivalence, buffer region and the right indicator.
↗Expansion and compression with the live P–V area — a feel for work done.
↗Water and CO₂: triple point, critical point, sublimation and supercritical fluid.
↗Live ICE tables, Q vs K and Le Chatelier: disturb an equilibrium, predict, then watch.
↗pH, buffers, salt hydrolysis and Ksp, with exact answers beside the shortcuts.
↗Z vs P for six gases, Boyle and critical temperatures, CO₂ isotherms with Maxwell line.
↗Raoult, ΔTb, ΔTf and osmosis for one solution, with van ’t Hoff i and molar mass.
The cube model — why d-orbitals split and why the order flips oct ↔ tet.
↗Ligand field-strength order (weak → strong), and how it sets colour, magnetism and high/low-spin.
↗14 VSEPR shapes — hypervalent halides, noble-gas fluorides, P₄ cluster.
↗Cation groups 0–VI & anion tests — reagent → observation, with the confirmatory tests.
Axial chirality in 3D - the even/odd rule for cumulenes & spiro, plus restricted-rotation atropisomerism in biphenyls.
↗Every structural isomer of a formula drawn out, with chiral and cis–trans ones marked.
↗Animated ring flip — watch axial and equatorial hydrogens swap places.
↗Rotate the dihedral of ethane & butane against a live torsional-energy curve.
↗Backside attack and Walden inversion, animated through the transition state.
↗Energy profiles side by side — substrate, nucleophile, solvent and leaving group decide the path.
↗Animated apparatus for sublimation, the four distillations, extraction and chromatography — with Rf and the JEE traps.
↗Nitration to Friedel–Crafts: σ-complex, curly arrows and why groups direct o/p or m.
↗Tap IR bands and NMR multiplets to see why, then identify unknown spectra.
Every named reaction, grouped by what it does, with a one-line summary. Searchable.
↗Reagent → observation for every FG test — Baeyer, Tollen's, Lucas, iodoform and more.
↗What each reagent reduces, oxidises or hydrolyses — LiAlH₄, NaBH₄, KMnO₄, O₃ and more.
↗NCERT / JEE m.p. & b.p. data in °C and K, by class, with the intermolecular-force reasoning.
↗NCERT organic compounds — physical properties & real-world uses, plus polymer & carbohydrate tables.
↗Qualitative element detection (Lassaigne) and quantitative estimation (Liebig, Dumas, Kjeldahl, Carius) with formulas.
Glucose (chair) & fructose (furanose) — α/β anomers, epimers, all-equatorial β-glucose.
↗Maltose, lactose, sucrose + starch/cellulose in 3D Haworth — which carbons the bond joins.
↗Amino acid, peptide bond, α-helix & β-sheet, 1°–4° structure, and enzyme lock-and-key.
↗Double helix, A–T / G–C base pairing, and nucleoside vs nucleotide — the Watson–Crick model in 3D.
Physical-chemistry formulae, chapterwise, filtered by JEE / NEET / CET / Boards.
↗Rotate the table; map Z, mass, EN, IE or radius to colour & height.
↗Standard reduction potentials (E° / V), searchable — oxidising vs reducing strength, EMF, displacement.
↗When can carbon, CO, H₂ or Al reduce an ore? Find where the lines cross.