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NEET levelSingle correct optionDifficulty 1 of 3ro023

The deep blue colour of a dilute solution of sodium in liquid ammonia is due to

  1. Asodium amide
  2. B ions
  3. Ccolloidal sodium oxide
  4. Dsolvated electrons

Answer: D

Sodium dissolves in liquid giving and ammoniated electrons, which absorb in the red and make the solution blue. These electrons are the reducing species in Birch reductions.
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