Question

Transition metals usually form coloured compound? What is the colour of Iron(III) Oxide

Answer 1

Answer:

Metals that are not transition metals usually form white or colourless compounds. Like other transition metals, iron forms coloured compounds.

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Coloured compounds.

Compound Ion Colour

Iron(III) oxide, Fe 2O 3 Fe 3+ Red-brown

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Answer 2

Answer:

Transition metals have high melting points and densities, form coloured compounds and act as catalysts. They range in reactivities, for example, iron reacts with oxygen in the air to form rust.

Orange-brown