Transition Metals - Colours

Descrição

Test on colours for Hydroxides, Oxides, and Chlorides of transition metals, along with their (aq) oxidation states, for edexcel A2 chemistry, 2015.
tastymemes
Quiz por tastymemes, atualizado more than 1 year ago
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Criado por tastymemes mais de 9 anos atrás
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Resumo de Recurso

Questão 1

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

Questão 2

Questão
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
Responda
  • True
  • False

Questão 3

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

Questão 4

Questão
What colour is CuCl2?
Responda
  • Green
  • Blue
  • Red
  • Black
  • Brown

Questão 5

Questão
[CuCl4] 2- is yellow.
Responda
  • True
  • False

Questão 6

Questão
NiCl2 is what colour?
Responda
  • Yellow
  • Green
  • Blue
  • Purple

Questão 7

Questão
Which of these are the correct colours for their listed transition metal chlorides?
Responda
  • 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

Questão 8

Questão
Cu2(I)O is red.
Responda
  • True
  • False

Questão 9

Questão
Cr2O3 is what colour?
Responda
  • Yellow
  • Blue
  • Violet
  • Green
  • Purple

Questão 10

Questão
Cu(OH)2 is a blue solution.
Responda
  • True
  • False

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