Explanation:
(a) CH₄
The molecule of methane is non polar in nature , hence it will show only the dispersion forces .
(b) NO₂
The molecule of nitrogen dioxide will show both dipole-dipole interactions and dispersion forces as well .
Since , the molecule is has an electronegative atom , i.e. , oxygen , so will show dipole - dipole interactions .
(c) SO₂
The molecule of sulfur dioxide will show both dipole-dipole interactions and dispersion forces as well .
Since , the molecule is has an electronegative atom , i.e. , oxygen , so will show dipole - dipole interactions .