Question

Hypervalent species among the following is
(1) BF3
(2)CO2
(3) SiF4
(4) XeF6​

Answer 1

Answer:

Hypervalent species among the following is

(1) BF3

(2)CO2. is the answer

(3) SiF4

(4) XeF6

Answer 2

$BF_{3}$ is the hypervalent species.

Explanation:

• An octet of electrons refers to the atoms that are attached to the central atom. The species that are attached can be easily accommodated by the octet of electrons.
• A Central atom contains more than eight electrons that are formally assigned in a valence shell. It is bonded indirectly with a various number of ligands.
• Hypervalent refers to the transfer of electrons. The transfer takes place from the central atom to the nonbonding molecular orbits. It is generally formed with more ligands.
• Hypervalenccy refers to those atoms that have got more than eight electrons.