What this practice covers
These questions are drawn from past CIE 0620 Chemistry papers and filtered to transition elements. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
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What examiners see students get wrong here
These are the errors that cost marks on transition elements, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Saying transition elements are more reactive than Group I metals.
- Expecting all transition metal compounds to be coloured, when zinc compounds are white or colourless.
- Giving iron(II) hydroxide as red-brown and iron(III) hydroxide as green, which is the wrong way round.
- Saying copper(II) hydroxide dissolves in excess sodium hydroxide, when it does not.
- Leaving the Roman numeral out of a name where the oxidation number varies.
- Saying transition elements always form +2 ions.
- Naming a catalyst without naming the process it catalyses, which is usually where the mark is.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Transition elements revision notes.