Transition Metals - Colours Test (Part 2)

Part 2 of the transition metal quiz. I know that TM colours do vary a lot, between exam boards and textbooks and what you read online! So these are the colours taken specifically from the new specification endorsed Edexcel A Level (Pearson) textbook.

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  • Created by: LouiseG
  • Created on: 24-06-17 14:26
What is the colour change when a small amount of NaOH is added to aqueous copper(II) sulfate, drop by drop?
Pale blue solution to pale blue precipitate
1 of 12
What colour is [Cu(H2O)6] + 4Cl- -> [CuCl4]2- + 6H2O at equilibrium?
Green
2 of 12
What colour does the precipitate [Co(OH)2(H2O)4] turn on standing in air?
Pink
3 of 12
What is the colour change: [Fe(H2O)6]3+ + 3OH- --> [Fe(OH)3(H2O)3] + 3H2O
Yellow brown solution to brown precipitate
4 of 12
What colour will [Fe(H2O)4(OH)2] turn if left exposed to air?
Brown
5 of 12
What is the colour change when alkaline H2O2 is added to a solution containing [Cr(OH)6]3- ?
Green to yellow
6 of 12
If a solution of CrO4 2- ions is acidified, what colour change occurs?
Yellow to orange
7 of 12
If acidified diochromate(VI) ions are mixed with solid zinc, what is the final colour seen of the resulting solution?
Pale blue
8 of 12
What is the colour change in the reaction between acidified MnO4- and excess ethanedioic acid?
Purple to colourless
9 of 12
What is the change seen when copper sulfate(II) solution is reduced to copper(I) oxide?
Blue solution to red-brown precipitate
10 of 12
What colour is [Zn(H2O)6]2+ in solution?
Colourless
11 of 12
What colour would a complex be with copper(II) ions bonded dative covalently to 4 butylamines and 2 H2O groups?
Dark blue
12 of 12

Other cards in this set

Card 2

Front

What colour is [Cu(H2O)6] + 4Cl- -> [CuCl4]2- + 6H2O at equilibrium?

Back

Green

Card 3

Front

What colour does the precipitate [Co(OH)2(H2O)4] turn on standing in air?

Back

Preview of the front of card 3

Card 4

Front

What is the colour change: [Fe(H2O)6]3+ + 3OH- --> [Fe(OH)3(H2O)3] + 3H2O

Back

Preview of the front of card 4

Card 5

Front

What colour will [Fe(H2O)4(OH)2] turn if left exposed to air?

Back

Preview of the front of card 5
View more cards

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