Q26 · CSIR-NET Chemistry, June 2017

Paper: CSIR-NET June 2017 · Subject: Inorganic Chemistry · Chapter: Chemical Bonding · Topic: MO Theory Diatomics · Marks: 2 · Difficulty: Easy

Based on VSEPR theory, the predicted shapes of $\left[\mathrm{XeF}_{5}\right]^{-}$and $\mathrm{BrF}_{5}$ respectively, are
(a)pentagonal planar and square pyramidal
(b)square pyramidal and trigonal bipyramidal
(c)trigonal bipyramidal and square pyramidal
(d)square pyramidal and pentagonal planar
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
[XeF₅]⁻ (AX₅E₂) is pentagonal planar; BrF₅ (AX₅E) is square pyramidal.

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