1.

Octer rule is not violated in case of

Answer»

methane
boron trifluoride
sulphur hexafluoride
aluminnium chloride

Solution :In `CH_(4)` methane C is bonded to four HYDROGENS and has 8 ELECTRONS in its valence shell, hence, it has a complete octet.
In `BF_(3)` and `AlCl_(3)` the central atoms has six electrons while in `SF_(6)`, S has 12 electrons in its valance shell.


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