Highly pure dilute solution of sodium in liquid ammonia
Show Hint
When a highly pure dilute solution of sodium comes in contact with ammonia, it releases electrons.
- shows blue colour
- exhibits electrical conductivity
- produces sodium amide
- produces hydrogen gas
The Correct Option is B
Solution and Explanation
When sodium dissolves in liquid ammonia, it forms a deep blue-coloured solution. This blue color is a distinctive feature of this type of solution and can be used to identify its presence.
\(Na + NH_3 \rightarrow Na^+ + _{Solvated\, \, electron}^{\, \, \, NH_3(e^-)}\)
- The solution is also a good conductor of electricity.
- When an electric potential is applied across the solution, the sodium ions and ammonia molecules become mobile, allowing the flow of electric current.
Therefore, a highly pure dilute solution of sodium in liquid ammonia shows blue color and exhibits electrical conductivity.
Both Options A and B are correct
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