Transition elements and their compounds are found to be good catalysts. Give examples.

Why do transition metals and their compounds are found to be good catalysts and form alloys ?

Transition metals are found to be good catalysts. Explain.

Transition element and their compounds exhibit paramagnetic behaviour and transition metals have high melting points. Explain.

What are toxic elements? Give examples.

What are enzymes or biochemical catalysts ? Give an example.

What are interhalogen compounds ? Give example.