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Grade: 12

                        

Based on VSEPR theory, the number of the 90 deegre F-Br-F angles in BrF 5 is

3 years ago

Answers : (1)

Arun
24742 Points
							According to VSEPR theory,  number of electron pairs around central atom (Br) are 6..N/2=(7+5)/2=6. (Five are bond pairs and one is lone pair)Its geometry is octahedral but due to lone pair- bond pair repulsion , the  four fluorine atoms at corner are forced towards the upper fluorine atom thus reducing F - Br -F angle from 90 to 84.8∴∴ The answer is 0.
						
3 years ago
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