Explain why transition metals and their many compounds act as good catalyst.

Explain why transition metals and their many compounds act as goodd catalyst.

Explain giving reasons: i. Transition metals and many of their compounds show paramagnetic behaviour. ii. The enthalpies of atomisation of the transition metals are high. iii. The transition metals generally form coloured compounds. Iv. Transition metals and their many compounds act as good catalyst.

Which of the following statement(s) is/are correct? (A) Transition metals and many of their compounds show paramagnetic behaviour. (B) The enthapies of atomisation of the transition metals are high (B) The transition metals generally form coloured compounds (D) Transition metals and their many compounds act as good catalyst.

(a) Members of second and third transition series exhibit similar atomic radii. Explain. (b) Account for the following: (i) Transition metals and their many compounds act as good catalysts. (ii) Actinoids has greater tendency to form complexes in comparison to Lanthanoids.

Explain giving reason:- Transition metals and their many compounds act as good catalyst.