Nitrogen(II) oxide, NO, nitrogen(IV) oxide, NO₂, carbon monoxide, CO, and unburnt hydrocarbons are present in the exhaust gases of internal combustion engines. When catalytic converters are used to remove these compounds from the exhaust gases, redox reactions occur. What happens to each compound in the catalytic converter? NO NO₂ CO hydrocarbons oxidised oxidised reduced oxidised oxidised oxidised oxidised oxidised reduced reduced oxidised oxidised reduced reduced reduced reduced

Acidified potassium manganate(VII) reacts with iron(II) ethanedioate, FeC₂O₄. The reactions taking place are shown. M…

In which reactions is the underlined element or compound reduced? 1 NaClO + H₂O₂ → O₂ + NaCl + H₂O 2 2NH₃ + 2Li → 2Li…

In the redox reaction shown, how do the oxidation states of vanadium and sulfur change? VO2+ + SO2 → V3+ + SO42-

Ammonium sulfate, (NH₄)₂SO₄, and ammonium nitrate, NH₄NO₃, are used as fertilisers. These salts have different percen…

River water in a chalky agricultural area contains Ca²⁺, Mg²⁺, CO₃²⁻, HCO₃⁻, Cl⁻ and NO₃⁻ ions. In a water treatment …

After black and white photographic film has been developed, unreacted silver bromide is removed by reaction with sodi…