A) solvated electron, \[{{e}^{-}}(N{{H}_{3}})_{x}^{-}\]
B) solvated atomic sodium, \[Na{{(N{{H}_{3}})}_{y}}\]
C) \[(N{{a}^{+}}+N{{a}^{-}})\]
D) \[NaN{{H}_{2}}+{{H}_{2}}\]
Correct Answer: A
Solution :
All alkali metals dissolve in liquid ammonia \[M+(x+y)N{{H}_{3}}\xrightarrow{{}}{{M}^{+}}{{(N{{H}_{3}})}_{x}}+{{e}^{-}}{{(N{{H}_{3}})}_{y}}\] These electrons are excited to higher energy levels and the absorption of photons occurs in the red region of the spectrum. Thus, solution appears blue.You need to login to perform this action.
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