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Q.
Among the following molecules, the one with the largest bond angle at the central atom is
KVPYKVPY 2017Chemical Bonding and Molecular Structure
Solution:
The bond angle depends upon the electronegativity of the central atom. More is the electronegativity of the central, larger is the bond angle. Thus, among the given central atom $Cl$ has the highest electronegativity. Therefore, $ClF_3$ has the largest bond angle at the central atom.