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AIIMS 2006
Exam
AIIMS
Year
2006
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2006 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

The compound molecular in nature in gas phase but ionic in solid...

The compound molecular in nature in gas phase but ionic in solid state is

Options

  1. APCl5\mathrm{PCl}_5
  2. BCCl4\mathrm{CCl}_4
  3. CPCl3\mathrm{PCl}_3
  4. DPOCl3\mathrm{POCl}_3.

Correct answer

A. PCl5\mathrm{PCl}_5

Step-by-step solution

\mathrm{PCl}_5ismolecularinthegasphasebutexistsasis molecular in the gas phase but exists as\left[\mathrm{PCl}_4\right]^{+}[PCl6]−\left[\mathrm{PCl}_6\right]^{-}in the crystalline solid.
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