Which of the following pairs of ions is isoelectronic and isostructural ?
A
$$C{O_3}^{2 - },\,\,N{O_3}^ - $$
B
$$C{lO_3}^{2 - },\,\,C{O_3}^{2 - }$$
C
$$S{O_3}^{2 - },\,\,N{O_3}^ - $$
D
$$Cl{O_3}^ - ,\,\,S{O_3}^{2 - }$$
Explanation
$$CO^{2-}_3$$; 6 + 24 + 2 = 32; sp2; trigonal planar
$$N)_3^-$$ : 7 + 24 + 1 = 32; sp2, trigonal planar
So, these are isoelectronic as well as isostructural.
