Give reasons for the following:
(i) Transition elements and their compounds act as catalysts
(ii) `E^(@)` value for `(Mn^(2+) | Mn)` is negative whereas for `(Cu^(2+) | Cu)` is positive.
(iii) Actinoids show irregularities in their electronic configuration.

Assign reasons for the following : (i) Transition metals and many fo their compounds act as good catalyst. (ii) Transition metals generally from coloured compounds.

Assign reasons for the following : (i) Transition metals and many fo their compounds act as good catalyst. (ii) Transition metals generally from coloured compounds.

Write the electronic configuration of Mn^(2+) and Cu^+ ions.

Give reasons for the following: (i) Transition metals form alloys. (ii) Mn_2O_3 is basic whereas Mn_2O_7 is acidic. (iii) Eu^(2+) is a strong reducing agent.

Give reasons for the following: i. Transition elements act as catalysts ii. It is difficult to obtain oxidation state greater than two for Copper. iii. CrO is basic but Cr_(2)O_(3) is amphoteric.

Give reason for the following : (i) Mn shows the highest oxidation state of +7 with oxygen but with fluorine, it shows the highest oxidation state of +4 (ii) Transition metals show variable oxidation states. (iii) Actinoids show irregularities in their electronic configurations.

Give reason for the following : (i) Mn shows the highest oxidation state of +7 with oxygen but with fluorine, it shows the highest oxidation state of +4 (ii) Transition metals show variable oxidation states. (iii) Actinoids show irregularities in their electronic configurations.