Question

9.
Which of the following pairs of ions is isoelectronic
and isostructural?
[NEET-Phase-2-2016]
(1) CO, NO3 (2) CIO3, C03
(3) so3-2, NO3 (4) CIO3- , SO3-2​

Answer 1

Answer:

2

Explanation:

Isoelectronic species have same number of electrons and isostructural species have same type of hybridization at central atom.

NO3–; No. of e – = 7 + 8 * 3 + 1 = 32, hybridization of N in NO3– is sp3

CO32–; No. of e – = 6 + 8 * 3 + 2 = 32, hybridization of C in CO32– is sp3

CIO3–; No. of e – = 17 + 8 * 3 + 1 = 42, hybridization of CI in CIO3– is sp3

SO3; No. of e – = 16 + 8 * 3 = 440, hybridization of S in SO3 is sp2

Answer 2

Explanation:

4 is only isoelectronic species . as they have same no. of electrons and they are also iso structural . ClO3 - and SO3 -2 both have tetrahedral geometry and pyramidal shape .