A) Solvated \[N{{a}^{+}}\]ions
B) Solvated electrons
C) Solvated \[NH_{2}^{-}\] ions
D) Solvated protons
Correct Answer: B
Solution :
When sodium metal is dissolved in liquid ammonia to form coloured solution. Dilute solutions are bright blue in colour due to the presence of solvated electrons. \[Na+(x+y)N{{H}_{3}}\to {{[Na{{(N{{H}_{3}})}_{x}}]}^{+}}+\underset{\text{Blue Colour}}{\mathop{{{[e{{(N{{H}_{3}})}_{y}}]}^{-}}}}\,\]
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