(i) Name the element of 3d transition series which shows maximum number of oxidation states. Why does it show so? (ii) Which transition metal of 3d series has positive E°(M2+/M) value and why? (iii) Out of Cr3+ and Mn3+, which is a stronger oxidizing agent and why? (iv) Name a member of the lanthanoid series which is well known to exhibit + 2 oxidation state. (v) Complete the following equation: MnO4– + 8H+ + 5e- ———->

(i) Name the element of 3d transition series which shows maximum number of oxidation states. Why does it show so? (ii) Which transition metal of 3d series has positive E°(M2+/M) value and why? (iii) Out of Cr3+ and Mn3+, which is a stronger oxidizing agent and why? (iv) Name a member of the lanthanoid series which is well known to exhibit + 2 oxidation state. (v) Complete the following equation: MnO4– + 8H+ + 5e- ———->

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter20: Chemistry Of Selected Transition Elements And Coordination Compounds

Section: Chapter Questions

Problem 55QRT

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