2. Sample Papers
  3. KVPY

KVPY Sample Paper KVPY Stream-SX Model Paper-8

  • question_answer
    Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of:

    A) sodium-ammonia complex

    B) sodamide

    C) sodium ion-ammonia complex

    D) ammoniated electrons

    Correct Answer: D

    Solution :

    \[Na(s)+(x+y)N{{H}_{3}}\xrightarrow[{}]{{}}N{{a}^{+}}{{(N{{H}_{3}})}_{x}}+\underset{\begin{smallmatrix}  \,\,\,\,\,\,\,\,\,\,\,\,\,\,Blue\,colour \\  ammoniated\,electrons \end{smallmatrix}}{\mathop{{{e}^{-}}{{(N{{H}_{3}})}_{y}}}}\,\]


You need to login to perform this action.
You will be redirected in 3 sec spinner