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Which molecule or ion has a trigonal planar shape?

A) ClO₄⁻
B) SO₃
C) PCl₅
D) H₂S

User Chris HG
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1 Answer

4 votes

Final answer:

The molecule or ion with a trigonal planar shape is SO₃.

Step-by-step explanation:

The molecule or ion that has a trigonal planar shape is option B) SO₃. In the SO₃ molecule, sulfur is surrounded by three oxygen atoms, forming a trigonal planar shape with bond angles of 120°. The Lewis structure of SO₃ shows that sulfur has three electron groups with no lone pairs, leading to a trigonal planar molecular shape.

User Joshua DeWald
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