Transition Metals - Colours

tastymemes
Quiz by tastymemes, updated more than 1 year ago
tastymemes
Created by tastymemes about 5 years ago
82
4

Description

Test on colours for Hydroxides, Oxides, and Chlorides of transition metals, along with their (aq) oxidation states, for edexcel A2 chemistry, 2015.

Resource summary

Question 1

Question
Which of these are the correct oxide colours for those transition metals listed?
Answer
  • MnO - Green
  • Cr2O3 - violet
  • Fe(II)O - Dark Red
  • Fe2(III)O3 - Black
  • NiO - Blue
  • CuO - Black
  • Cu2(I)O - Black

Question 2

Question
The colours for V in its various oxidation states are as follows: V 2+ - Violet V 3+ - Green V 4+ - Blue V 5+ (VO3- and VO2+) - Yellow
Answer
  • True
  • False

Question 3

Question
Which of these colours are correct for the listed compounds and oxidation states of Mn?
Answer
  • MnO - Pale Pink
  • MnCl2.2H2O - Brown
  • [Mn(H2O)6] 2+ - Purple
  • MnO4 2- (aq) - Pale Pink
  • MnO4- (aq) - Purple

Question 4

Question
What colour is CuCl2?
Answer
  • Green
  • Blue
  • Red
  • Black
  • Brown

Question 5

Question
[CuCl4] 2- is yellow.
Answer
  • True
  • False

Question 6

Question
NiCl2 is what colour?
Answer
  • Yellow
  • Green
  • Blue
  • Purple

Question 7

Question
Which of these are the correct colours for their listed transition metal chlorides?
Answer
  • CrCl2 - Green
  • CrCl3 - Violet
  • CrCl3.6H2O - Violet
  • FeCl2 - Brown
  • FeCl3 - depends on the angle it is viewed at.
  • NiCl2 - Green
  • NiCl2.6H2O - Green
  • CuCl2.H2O - Green
  • CuCl - Green

Question 8

Question
Cu2(I)O is red.
Answer
  • True
  • False

Question 9

Question
Cr2O3 is what colour?
Answer
  • Yellow
  • Blue
  • Violet
  • Green
  • Purple

Question 10

Question
Cu(OH)2 is a blue solution.
Answer
  • True
  • False
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