Question

Which one of the following is super
octet molecule
(A) C2H4
(B) SF.
(C) CO2
(D) BF3​

Answer 1

Answer:

I think it's correct ans is BF3

Answer 2

Answer:

All the three molecules SF 6

,PCl 5

andBrCl 5

deviate from the octet rule, as the central atom in them contains more than 8 electrons. Thus, this is an example of expanded octet.

deviate from the octet rule, as the central atom in them contains more than 8 electrons. Thus, this is an example of expanded octet.The central atom in SF 6

has 12 valence electrons.

has 12 valence electrons.The central atom in PCl 5

has 10 valence electrons.

has 10 valence electrons.The central atom in BrCl 5

has 12 valence electrons.

has 12 valence electrons. However, according to Sugden's view of singlet linkage, the octet rule is never violated but in certain molecules, the atoms are linked not only by covalent bonds but also by singlet linkage (half bond or single electron linkage).

has 12 valence electrons. However, according to Sugden's view of singlet linkage, the octet rule is never violated but in certain molecules, the atoms are linked not only by covalent bonds but also by singlet linkage (half bond or single electron linkage).Thus, in SF 6

, there are 2 covalent bonds and 4 singlet linkages. Thus, the S atom and six F atoms in SF6

contain 8 electrons each.