JEE Main · 2019 · Shift-IIeasyPB12-053

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

p-Block Elements (Class 12) · Class 12 · JEE Main Previous Year Question

Question

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

Options
  1. a

    Sodamide

  2. b

    Sodium-ammonia complex

  3. c

    Sodium ion-ammonia complex

  4. d

    Ammoniated electrons

Correct Answerd

Ammoniated electrons

Detailed Solution

Strategy: Identify the geometry of Xenon fluorides and oxyfluorides using valence electron pair counts.

Step 1: Structural Predictions

  • \ceXeF2\ce{XeF2} (2 BP + 3 LP): Linear.
  • \ceXeF4\ce{XeF4} (4 BP + 2 LP): Square Planar.
  • \ceXeF6\ce{XeF6} (6 BP + 1 LP): Distorted Octahedral.
  • \ceXeOF4\ce{XeOF4} (5 BP + 1 LP): Square Pyramidal.

Step 2: Conclusion Matching the species with their theoretical shapes gives the correct set.

Answer: (Option) [d] [Correct matching set]\boxed{\text{Answer: (Option) [d] [Correct matching set]}}

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Sodium metal on dissolution in liquid ammonia gives a deep blue solution due to the formation of: (JEE Main 2019) | Canvas Classes