111 marks
Iron is a transition element.
Which of the following statements about transition elements are correct?
Tick three boxes.
The metals are highly coloured e.g. yellow, green, blue. |
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The metals have low melting points. |
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Their compounds are highly coloured. |
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Their compounds are colourless. |
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The elements and their compounds are often used as catalysts. |
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They have more than one oxidation state. |