Which of the following species are hypervalent?
1. ClO₄ ^-, 2. BF₃, 3. SO₄ ^2-, 4. CO₃ ^2-
(1) 1, 2, 3 (2) 1, 3 (3) 3, 4 (4) 1, 2
Explain properly..

Question

Which of the following species are hypervalent?
​1 ClO4 -, 2 BF3, 3
SO4 2-, 4 CO3 2-
(1) 1, 2, 3 (2) 1, 3 (3) 3, 4 (4) 1, 2
Explain properly

Vartika Jain · Accepted Answer

A hypervalent molecule
is a molecule that contains one or more main group elements
formally bearing more than eight electrons in their valence
shells

BF3 is not a hypervalent molecule since in
BF3 B has 6 electrons in its outermost shell

ClO4- is a hypervalent molecule as Cl
contains 14 electrons in its outermost shell

CO32- is not hypervalent as C contain 8
electrons in its valence shell

SO42- is hypervalent molecule as S
contains 12 electrons in its valence shell

So the possible answer will be (2) i e 1 and 3

Which of the following species are hypervalent? ​1. ClO4 -, 2. BF3, 3. SO4 2-, 4. CO3 2- (1) 1, 2, 3 (2) 1, 3 (3) 3, 4 (4) 1, 2 Explain properly..