To which of the following species, the octet rule is not applicable?
A
BrF5
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B
SF6
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C
IF7
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D
CO2
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Solution
The correct options are ABrF5 BSF6 CIF7 (A) BrF5 contains 10 electrons in place of eight. (B) SF6 contains 12 electrons in place of eight. (C) IF7 contains 14 electrons in place of eight. So, octet rule is not applicable in these three molecules.