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The colour of C u C r 2 O 7 solution in water is green because

Options

  1. AC r 2 O 7 2 - ions are green
  2. BC u + + ions are green
  3. CBoth ions are green
  4. DC u + + ions are blue and C r 2 O 7 2 - ions are orange

Correct answer

D. C u + + ions are blue and C r 2 O 7 2 - ions are orange

Step-by-step solution

C u + + ions are blue and C r 2 O 7 - - ions are orange, orange and blue combination gives-green colour.

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