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JEE Main 201910 JanuaryEvening Shift
Exam
JEE Main
Year
2019
Date
10 January
Shift
Evening Shift
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2019 · 10 January · Evening Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Sodium metal on dissolution in liquid ammonia gives a deep blue...

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

Options

  1. ASodamide
  2. BSodium-ammonia complex
  3. CSodium ion-ammonia complex
  4. DAmmoniated electrons

Correct answer

D. Ammoniated electrons

Step-by-step solution

Na+(x+y)NH3→Na + \left(x + y\right){NH}_{3} \to[(Na(NH3)x)]++[(e(NH3)y)]−{[ ( Na{( {NH}_{3} )}_{x} ) ]}^{+} + {[ ( e{( {NH}_{3} )}_{y} ) ]}^{-}

Blue colour is due to the ammoniated electrons.
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