Q21 · CSIR-NET Chemistry, June 2014

Paper: CSIR-NET June 2014 · Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: Chemical Bonding – General · Marks: 2 · Difficulty: Easy

Structures of $\mathrm{SbPh}_{5}$ and $\mathrm{PPh}_{5}$ respectively are
(a)trigonal bipyramidal, square pyramidal
(b)square pyramidal, trigonal bipyramidal
(c)trigonal bipyramidal, trigonal bipyramidal
(d)square pyramidal, square pyramidal
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
SbPh₅ is the classic exception — square pyramidal in the solid; PPh₅ is trigonal bipyramidal.

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