A) tin
B) lead
C) sodium
D) silver
E) zinc
Correct Answer: C
Solution :
Alkali metals dissolve in liquid\[N{{H}_{3}}\]giving deep blue solution. The colour deepens with increase in concentration of the solution. When the alkali metals are dissolved in liquid. \[N{{H}_{3}},\]the ammonia molecule solvate the cation as well as the electron as: \[M+\underset{(excess)}{\mathop{N{{H}_{3}}}}\,\xrightarrow[{}]{{}}{{M}^{+}}{{(N{{H}_{3}})}_{x}}+\underset{\begin{smallmatrix} ammoniated \\ \,\,\,\,electron \end{smallmatrix}}{\mathop{{{e}^{-}}{{(N{{H}_{3}})}_{x}}}}\,\] The blue colour of the solution is due to the ammoniated electrons. Due to these ammoniated electrons these solution also behaves as strong reducing agents.You need to login to perform this action.
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