Transition metals + ammonia & NaOH - Edexcel chemistry a2

Hello guys, this is a quiz about PERCIPITATE COLOURS for reactions of transition metals with OH- and NH3, as well as in water. It is specifically suited to the Edexcel A2 unit 5 specification (chemsitry) but can be used for any. :)

N.B. the colours vary according to what textbook you use, I've used the ones in the official Edexcel textbook rather than the revision guide. 

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  • Created by: Mirte
  • Created on: 07-06-14 11:24

1. Which precipitates dissolve to reform a coloured solution in reaction with EXCESS NH3?

  • Iron (II), Chromium, Nickel, Copper (II)
  • Chromium, Zinc, Copper (II), Iron (II)
  • Chromium, Nickel, Copper (II), Zinc
  • Nickel, Copper II, Zinc
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Other questions in this quiz

2. Which two transition metal (ions) produce white precipitates in reactions both with OH- and NH3? (not in excess)

  • Manganate and Zinc
  • Nickel and Zinc
  • Mangante and Copper (II)
  • Zinc and Iron (III)

3. The order of Chronium observations in reactions with 1)water 2)OH- and NH3 3)Excess OH- 4)Excess NH3 is.....

  • 1violet solution 2violet ppt 3no change 4no change
  • 1violet solution 2violet ppt 3green ppt 4yellow solution
  • 1violet solution 2violet ppt 3green solution 4yellow solution
  • 1pink solution 2blue ppt 3green solution 4yellow solution

4. What colour is the Nickel (II) ion in water?

  • Green solution
  • Green precipitate
  • Blue solution
  • Yellow solution

5. Reaction of Iron (III) with ammonia produces a...

  • Blue solution
  • Yellow precipitate
  • Brown precipitate
  • Green precipiate


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