Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Chemical Bond and Molecular Structure
Which of the following pairs of ions are isoelectronic and isostructural?
(I) \(CO_3^{2 - },\,NO_3^ - \)
(II) \(ClO_3^ - ,\,CO_3^{2 - }\)
(III) \(SO_3^{2 - },\,NO_3^ - \)
(IV) \(ClO_3^ - ,\,SO_3^{2 - }\)
1
II, III
2
I
3
I, IV
4
More than one of the above
5
None of the above