Important compounds: K2Cr2O7, KMnO4
d-Block Elements (Transition Metals) · Chemistry
Molecule viewer
Interactive 3DBall-and-stick models with true bond angles — switch molecule to compare shapes.
Controls
Drag the sliders or type a value — the simulation updates live.
Study notes
KMnO₄ oxidises Fe²⁺ differently in acid vs alkaline medium. Show both. Step 1: Acid: MnO₄⁻ + 8H⁺ + 5e⁻ → Mn²⁺ + 4H₂O (purple → colourless). Step 2: 5Fe²⁺ → 5Fe³⁺ + 5e⁻. Overall: MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O. Step 3: Alkaline: MnO₄⁻ + e⁻ → MnO₄²⁻ (purple → green manganate). Step 4: Medium decides the product — that's why titrations specify conditions!