Engineering
Chemistry
VSEPR Theory
Question

Based on VSEPR theory, the number of 90-degree F–Br–F angles in BrF5 is

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Solution

  

Based on VSEPR theory, there are zero (0) 90-degree F–Br–F angles in BrF₅ because the lone pair on the central Bromine atom repels the equatorial bond pairs, compressing the F-Br-F angles from the ideal 90° down to about 84.8°, resulting in a distorted square pyramidal shape