AP Chemistrymediummcq1 pt
Which ion has all atoms in one plane?
A.NO₃⁻
B.NH₄⁺
C.SO₃²⁻
D.ClO₃⁻
Explanation
Core Concept
Nitrate's nitrogen has three domains (three resonance N–O bonds) — trigonal planar with 120° angles, so all four atoms share a plane.
Correct Answer
ANO₃⁻
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