Which of the following has the smallest bond angle ( X - S - X ) in the given molecules? X represents a halogen atom.

Step-by-step solution

All the given compounds have similar basic geometry: Where, X = F ,   Cl ,   Br ,   I The difference in X - S - X bond angle is due to the difference in electronegativity of X atom. This is because, if the electronegativity of X is more, then the shared pair of electrons will be closer to X and will be at more distance from each other which will cause less repulsions, thus, will have smaller   X - S - X bond angle. Out of F ,   Cl ,   Br and I , Fluorine is the most electronegative, th