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Account for the following :
Which property of transition metals enables them to behave as catalysts ?
Account for the following : (1) Zn²⁺ salts are colourless while Ni²⁺ salts are coloured. (2) Cr²⁺ is a strong reducing agent. (3) Transition metals and their compounds show catalytic activities.
Write the ionic equations for the oxidizing action of MnO₄⁻ in acidic medium with (1) I⁻ ion, and (2) Fe²⁺ ion.
Name two oxometal anions of the 3d series of the transition metals in which the metal exhibits the oxidation state equal to its group number.
What is the effect of increasing pH on a solution of K₂Cr₂O₇ ?
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