Which molecule has the shortest bond length among those with a double bond?
Among molecules with a double bond, O₂ has a bond length of ~121 pm, shorter than C₂H₄ (~134 pm), SO₂ (~143 pm), or NO₂ (~124 pm), due to higher bond strength and smaller atomic radii.
Ref: NCERT Class 11 Chemistry > Chapter 4: Chemical Bonding and Molecular Structure > Topic: Covalent Bonding - Bond Parameters and Polarity and Fajan's Rule