Question -
Answer -
Oxygen is smaller in size ascompared to sulphur. Due to its smaller size, it can effectively form pπ−pπ bondsand form O2 (O==O) molecule. Also, the intermolecular forces inoxygen are weak van der Wall’s, which cause it to exist as gas. On the otherhand, sulphur does not form M2 molecule but exists as apuckered structure held together by strong covalent bonds. Hence, it is asolid.