Loading...
Account for the following : (1) [Ti(H₂O)₆]⁴⁺ is colourless. (2) MnO is basic while Mn₂O₇ is acidic. (3) Actinoids show a wide range of oxidation states.
Write the preparation of KMnO₄ from MnO₂.
Account for the following: (i) E° value for Mn³⁺/ Mn²⁺ couple is much more positive than that for Cr³⁺/ Cr²⁺. (ii) Sc³⁺ is colourless whereas Ti³⁺ is coloured in an aqueous solution. (iii) Actinoids show wide range of oxidation states.
Write the chemical equations for the preparation of KMnO₄ from MnO₂.
Account for the following: (i) Transition metals form alloys. (ii) Ce⁴⁺ is a strong oxidising agent.
Write one similarity and one difference between chemistry of Lanthanoids and Actinoids.
© 2026 PadhAiPro. This question is provided for educational purposes.