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NEETChemistrys Block Elements

When a metal of group 1 was dissolved in liquid ammonia, the following observations were obtained: (i) Blue solution was obtained initially. (ii) On concentrating the solution, blue colour changed to bronze colour. Which of the following best accounts for the blue colour of the solution?

Options

  1. AFormation of a metal-ammonia complex
  2. BFormation of a metal oxide
  3. CFormation of a metal nitride
  4. DFormation of a metal chloride

Correct answer

A. Formation of a metal-ammonia complex

Step-by-step solution

Correct Option is : (A) Formation of a metal-ammonia complex

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