Question

Which of the following is not correctly matched?

• A. $PCl_5$ - $sp^3d$ hybridisation
• B. $PCl_3$ - $sp^3$ hybridisation
• C. $PCl_{5}$ (solid) - $\left[PtCl_{4}\right]^{+} \left[PtCl_{6}\right]^{-}$
• D. $PCl_5$ - brownish powder

Answer 1

Answer: (C)

$PCl_{5}$ (solid) - $\left[PtCl_{4}\right]^{+} \left[PtCl_{6}\right]^{-}$

Answer 2

$PCl_5$ is yellowish-white powder.

PCl5 is used as a chlorinating reagent. It is a colorless, water-sensitive, and moisture-sensitive solid. In the solid state, PCl5 exists as an ionic solid, [PCl4]+[PCl6]−. The cation, [PCl4]+ is tetrahedral and sp3 hybridized. The anion, [PCl6]− is octahedral and is sp 3d2 hybridized.