861 past contests
Topic 6 · Statement of avogadro's law
Topic 6 · Statement of graham's law of diffusion
Topic 6 · Statement of hess's law
Topic 23 · Naming and identifying the reactivity of the four structural isomers of butanol
Topic 17 · Industrial processes: the contact process (h2so4), the haber process (nh3), and the v2o5 catalyst
Topic 21 · Kerosene and aviation fuel come from similar/overlapping crude-oil fractions (true/false)
Topic 21 · Branched hydrocarbons burn more smoothly (higher octane) than straight-chain isomers (true/false)
Topic 21 · Reforming converts straight-chain alkanes to branched/aromatic products (true/false)
Topic 6 · Catalysts in the haber process do not alter equilibrium ammonia yield (true/false)
Topic 6 · Negative reaction enthalpy favours spontaneity (true/false)
Topic 39 · Emf and direction of external-circuit conventional current from two positive electrode potentials
Topic 39 · Emf and cathode identification from a positive and a negative electrode potential
Topic 39 · Emf and anode identification from two negative electrode potentials
Topic 8 · Why chromium's ground-state configuration is 4s1 3d5 rather than 4s2 3d4
Topic 28 · Common valencies of a transition element from its valence-shell configuration (4s2 3d6)
Topic 28 · Inferring valence-shell configuration from a wide range of observed valencies
Topic 15 · Determining reaction order from an unchanged rate despite concentration change (zero order)
Topic 15 · Determining reaction order from how rate scales when concentration doubles (order 2)
Topic 15 · Determining reaction order from how rate scales when concentration doubles (order 3)
Topic 5 · Naming all possible hexenes with formula c6h12