Count the planar species with fractional bond order between at least one pair of atoms: P O 4 3 − , H N 3 , S O 4 2 − , NO , N O 3 − , C O 3 2 − .

Question

Count the planar species with fractional bond order between at least one pair of atoms: P O 4 3 − ​ , H N 3 ​ , S O 4 2 − ​ , NO , N O 3 − ​ , C O 3 2 − ​ .

TestHub · Accepted Answer

PO₄³⁻ and SO₄²⁻ are tetrahedral and fail planarity. HN₃ is planar with resonance-delocalised N-N bonds; NO is diatomic with bond order 2.5; NO₃⁻ and CO₃²⁻ are trigonal planar with bond order 4/3. Those four qualify, giving 4.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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