SO_2 is a room temperature gas that has a normal boiling point of -10""^@C.
Explanation:
And as I recall SeO_2 is a non-molecular, room temperature solid. On the other hand, SO_2 is molecular.
SeO_2 is comprised of one selenium atom, and two oxygen atoms, while SO_2 is made up of one sulfur atom and two oxygen atoms. In SeO_2 there are no molecular boundaries.
And SO_2 is a room temperature gas....that has a boiling point of −10^∘C
And so we truly compare apples with oranges.........