Which group 16 element forms a dioxide that exists as a linear gas at room temperature?
In group 16, O₂ is a linear diatomic gas at room temperature, unlike SO₂ (bent), SeO₂ (polymeric solid), or TeO₂ (solid).
Ref: NCERT Class 11 Chemistry > Chapter 3: Classification of Elements and Periodicity in Properties > Topic: Nomenclature of Elements with Atomic Number >100
